Consider when thou art much vexed or grieved, that man's life is only a moment, and after a short time we are all laid out dead.
Marcus AureliusIf thou workest at that which is before thee ... expecting nothing, fearing nothing, but satisfied with thy present activity according to Nature, and with heroic truth in every word and sound which thou utterest, thou wilt live happy. And there is no man who is able to prevent this.
Marcus AureliusDo not indulge in dreams of having what you have not, but reckon up the chief of the blessings you do possess, and then thankfully remember how you would crave for them if they were not yours.
Marcus Aurelius