But among the things readiest to hand to which you shall turn, let there be these two:

One is that things do not touch the soul, for they are external to its movement, but your anguish only comes from judgments within. The other is that all these things which you see now are changing and will cease to be, and constantly bear in mind how many of these changes you have already witnessed. The universe is transformation. Life is judgement.

Author: Marcus Aurelius