Doubt kills activity, discourages ambition and destroys or neutralizes the biggest brain power. It would make a pigmy of a Webster. By filling his mind full of doubt of his own creative power, a hypnotist could make a Shakespeare believe he was a fool. He could inject a doubt into the mind of a Napoleon that would cut his genius down to the mediocrity of a common soldier.
This arch traitor of mankind is so closely related to fear that it is almost impossible to draw a dividing line between the two. They are twins. Wherever doubt can get a foothold it introduces its brother fear, and fear brings with it all of its relatives, worry, anxiety, discouragement—the whole failure family. A single day of doubts, of fears, of unbeliefs, of the crime of self-depreciation, will drive away from a man all that he has attracted to himself in many months.
There are multitudes of people to-day suffering from the fatal disease of self-depreciation, the seeds of which were implanted in them by doubt. All the victims of discouragement, those who are suffering from despondency, those who are going through life disheartened, hopeless, despairing, are the authors of their own misery. They persist in killing the very thing they are pursuing, in queering their own quest by the poison of doubt.
The doubting Thomases never get anywhere, because they have no vision, and "without a vision the people perish." The man who would do anything worth while in this world must have a vision, and he must have courage to match it. Courage is the great leader in the mental realm. Whatever paralyzes it strangles the initiative, kills the ability to do things. Doubt is its greatest enemy. It suggests caution at the very moment when everything depends on boldness. If a general were to be over-cautious, to wait for absolute certainty in regard to results before putting his plan of campaign into action, he would never win a battle.
Caution is an admirable trait, but when carried to excess it ceases to be a virtue and comes perilously near being a vice. It may render ineffective many noble qualities. There are a great many people who seem to be courageous enough, but an excessive development of caution holds everything in abeyance to wait for certainty. I know men who wait and wait, never daring to undertake anything where there is risk, even though their judgment tells them they ought to go ahead.
We are creatures of habit, and the constant raising of doubts in our minds as to our ability to do what we want to do in time becomes a habit of thinking we can't, and when we think we can't, we can't. When a man begins to listen to his doubts he is beginning to weaken.
Why delay beginning the thing that you know perfectly well you ought to do? What are you afraid of? Failure, even, in an honorable attempt, is preferable to forever postponing the thing that you ought to do. Is it the additional responsibility you shrink from, the extra work? Do you have a horror of possible failure? Do you shrink from the possible humiliation of losing out in your venture? What is it that enlarges your doubt and holds you back? Some handicap, some invisible thread? Are you carrying a great excess of baggage, clinging to unnecessary things which handicap you?
I have heard of a sailor who lost his life in that way. He was one of the crew of a ship that was carrying a large quantity of gold nuggets to a distant port. The ship ran upon a rock, and, when all hope of saving her or her precious cargo was gone, the captain ordered everybody to leave the sinking ship. The last boat was ready to push off, but this sailor refused to get into it until he had loaded himself with gold nuggets. He said he had been a poor man all his life, and now he was going to be rich at last. He would take away with him just as much of the sinking wealth as he could carry. Heedless of the warning of the captain and his companions that they would not wait for him, he loaded himself with gold. Then, the boats having pushed away, he jumped overboard and tried to save himself by clinging to pieces of the wreck. But, owing to the weight he carried, he could neither float nor swim, and so the wealth he felt he could not leave behind carried him down to death.
Your doubt of your success is probably your biggest handicap. But it would be a thousand times better to make mistakes by forging ahead too rapidly, by undertaking more than we can carry out, than to be forever hovering upon the edge of doubt, delaying, postponing, waiting for certainty, until we become slaves of a habit which we cannot break. And remember that the habit of putting off, of waiting to see how things are going to turn out, to see if something more certain, something with less of risk, will not turn up, is fatal to initiative, fatal to leadership, fatal to efficiency.
I know a man who has been resolving for a quarter of a century to start something in which he thoroughly believes. Every year during that long period he has told me that this was the year for him to start. He was really going to begin his great life work, but doubt has engendered the putting off habit, and this has such a grip upon him that he shrinks from undertaking anything new. He seems to have a great fear of getting out of his old rut, to try something different, a fear that things may not work out right, that it is not the psychological moment to strike. He has gray hairs now, the enthusiasm of youth is gone, and he never will begin to do the thing which everybody who knows him believes he is perfectly capable of doing.