LET not the general representation unto thyself of the wretchedness of this our mortal life, trouble thee. Let not thy mind wander up and down, and heap together in her thoughts, the many troubles and grievous calamities which thou art as subject unto as any other. But as everything in particular doth happen, put this question unto thyself, and say ; What is it that in this present matter, seems unto thee so intolerable? For thou wilt be ashamed to confess it. Then upon this presently call to mind, that neither that which is future, nor that which is past can hurt thee; but that only which is present. (And that also is much lessened, if thou dost rightly circumscribe it!) and then check thy mind if for so little a while, (a mere instant) it cannot hold out with patience.
MARCUS AURELIUS. MEDITATIONS. Book viii. 34.