He who lives in harmony with himself lives in harmony with the universe. - Marcus Aurelius

[...] As for others whose lives are not so ordered, he reminds himself constantly of the characters they exhibit daily and nightly at home and abroad, and of the sort of society they frequent; and the approval of such men, who do not even stand well in their own eyes has no value for him.

"Leaves, some the wind scatters on the ground—So is the race of man." Leaves, also, are thy children; and leaves, too, are they who cry out so if they are worthy of credit, or bestow their praise, or on the contrary curse, or secretly blame and sneer; and leaves, in like manner, are those who shall receive and transmit a man's fame to after-times. For all such things as these "are produced in the season of spring," as the poet says; then the wind casts them down; then the forest produces other leaves in their places. But a brief existence is common to all things, and yet thou avoidest and pursuest all things as if they would be eternal.

For a man can lose neither the past nor the future; for how can one take from him that which is not his? So remember these two points: first, that each thing is of like form from everlasting and comes round again in its cycle, and that it signifies not whether a man shall look upon the same things for a hundred years or two hundred, or for an infinity of time; second, that the longest lived and the shortest lived man, when they come to die, lose one and the same thing.