I was in that state of doubt and uncertainty which Descartes considers essential to the search for truth. It is a state which cannot continue, it is disquieting and painful; only vicious tendencies and an idle heart can keep us in that state. My heart was not so corrupt as to delight in it, and there is nothing which so maintains the habit of thinking as being better pleased with oneself than with one’s lot.

I pondered, therefore, on the sad fate of mortals, adrift upon this sea of human opinions, without compass or rudder, and abandoned to their stormy passions with no guide but an inexperienced pilot who does not know whence he comes or whither he is going. I said to myself, “I love truth, I seek her, and cannot find her. Show me truth and I will hold her fast; why does she hide her face from the eager heart that would fain worship her?”

Although I have often experienced worse sufferings, I have never led a life so uniformly distressing as this period of unrest and anxiety, when I wandered incessantly from one doubt to another, gaining nothing from my prolonged meditations but uncertainty, darkness, and contradiction with regard to the source of my being and the rule of my duties.

I cannot understand how any one can be a sceptic sincerely and on principle. Either such philosophers do not exist or they are the most miserable of men. Doubt with regard to what we ought to know is a condition too violent for the human mind; it cannot long be endured; in spite of itself the mind decides one way or another, and it prefers to be deceived rather than to believe nothing.

My perplexity was increased by the fact that I had been brought up in a church which decides everything and permits no doubts, so that having rejected one article of faith I was forced to reject the rest; as I could not accept absurd decisions, I was deprived of those which were not absurd. When I was told to believe everything, I could believe nothing, and I knew not where to stop.

I consulted the philosophers, I searched their books and examined their various theories; I found them all alike proud, assertive, dogmatic, professing, even in their so-called scepticism, to know everything, proving nothing, scoffing at each other. This last trait, which was common to all of them, struck me as the only point in which they were right. Braggarts in attack, they are weaklings in defence. Weigh their arguments, they are all destructive; count their voices, every one speaks for himself; they are only agreed in arguing with each other. I could find no way out of my uncertainty by listening to them.

I suppose this prodigious diversity of opinion is caused, in the first place, by the weakness of the human intellect; and, in the second, by pride. We have no means of measuring this vast machine, we are unable to calculate its workings; we know neither its guiding principles nor its final purpose; we do not know ourselves, we know neither our nature nor the spirit that moves us; we scarcely know whether man is one or many; we are surrounded by impenetrable mysteries. These mysteries are beyond the region of sense, we think we can penetrate them by the light of reason, but we fall back on our imagination. Through this imagined world each forces a way for himself which he holds to be right; none can tell whether his path will lead him to the goal. Yet we long to know and understand it all. The one thing we do not know is the limit of the knowable. We prefer to trust to chance and to believe what is not true, rather than to own that not one of us can see what really is. A fragment of some vast whole whose bounds are beyond our gaze, a fragment abandoned by its Creator to our foolish quarrels, we are vain enough to want to determine the nature of that whole and our own relations with regard to it.

If the philosophers were in a position to declare the truth, which of them would care to do so? Every one of them knows that his own system rests on no surer foundations than the rest, but he maintains it because it is his own. There is not one of them who, if he chanced to discover the difference between truth and falsehood, would not prefer his own lie to the truth which another had discovered. Where is the philosopher who would not deceive the whole world for his own glory? If he can rise above the crowd, if he can excel his rivals, what more does he want? Among believers he is an atheist; among atheists he would be a believer.

The first thing I learned from these considerations was to restrict my inquiries to what directly concerned myself, to rest in profound ignorance of everything else, and not even to trouble myself to doubt anything beyond what I required to know.

I also realised that the philosophers, far from ridding me of my vain doubts, only multiplied the doubts that tormented me and failed to remove any one of them. So I chose another guide and said, “Let me follow the Inner Light; it will not lead me so far astray as others have done, or if it does it will be my own fault, and I shall not go so far wrong if I follow my own illusions as if I trusted to their deceits.”