Instead, therefore, of always thinking about our plans and anxiously looking to the future, or of giving ourselves up to regret for the past, we should never forget that the present is the only reality, the only certainty; that the future almost always turns out contrary to our expectations; that the past, too, was very different from what we suppose it to have been. But the past and the future are, on the whole, of less consequence than we think. Distance, which makes objects look small to the outward eye, makes them look big to the eye of thought. The present alone is true and actual; it is the only time which possesses full reality, and our existence lies in it exclusively. Therefore we should always be glad of it, and give it the welcome it deserves, and enjoy every hour that is bearable by its freedom from pain and annoyance with a full consciousness of its value. We shall hardly be able to do this if we make a wry face over the failure of our hopes in the past or over our anxiety for the future. It is the height of folly to refuse the present hour of happiness, or wantonly to spoil it by vexation at by-gones or uneasiness about what is to come. There is a time, of course, for forethought, nay, even for repentance; but when it is over let us think of what is past as of something to which we have said farewell, of necessity subduing our hearts-- [Greek: alla ta men protuchthai easomen achnumenoi per tumhon eni staethessi philon damasntes hanankae],[1] and of the future as of that which lies beyond our power, in the lap of the gods-- [Greek: all aetoi men tauta theon en gounasi keitai.][2] [Footnote 1: _Iliad_, xix, 65.] [Footnote 2: _Ibid_, xvii, 514] But in regard to the present let us remember Seneca's advice, and live each day as if it were our whole life,--_singulas dies singulas vitas puta_: let us make it as agreeable as possible, it is the only real time we have. Only those evils which are sure to come at a definite date have any right to disturb us; and how few there are which fulfill this description. For evils are of two kinds; either they are possible only, at most probable; or they are inevitable. Even in the case of evils which are sure to happen, the time at which they will happen is uncertain. A man who is always preparing for either class of evil will not have a moment of peace left him. So, if we are not to lose all comfort in life through the fear of evils, some of which are uncertain in themselves, and others, in the time at which they will occur, we should look upon the one kind as never likely to happen, and the other as not likely to happen very soon.