PLOTINOS CAN GO NO FURTHER IN REFUTING ENDLESS DEFINITIONS OF TIME.
Now, as our purpose is to discover, not what time is not, but what it really is, we notice that this question has been treated at great length by many thinkers before us; and if we were to undertake to consider all existing opinions on the subject, we would be obliged to write a veritable history of the subject. We have here, however, gone to the limit of our ability in treating it without specializing in it. As has been seen, it is easy enough to refute the opinion that time is the measure of the movement of the universe, and to raise against this opinion the objections that we have raised against the definition of time as the measure of movement in general, opposing thereto the irregularity of movement, and the other points from which suitable arguments may be drawn. We are therefore free to devote ourselves to an explanation of what time really is.