On Fate

The fates guide the person who accepts them and hinder the person who resists them.

— Seneca

Letters 107.11

Do not seek to have everything that happens happen as you wish, but wish for everything to happen as it actually does happen, and your life will be serene.

— Musonius Rufus

Fragments (paraphrase after Epictetus)

Happiness is the art of living according to nature.

— Zeno of Citium

Fragment, in Stobaeus 2.75

If you are not certain what will happen, prepare for all possibilities.

— Marcus Aurelius

Meditations (attrib.)

The universe is transformation; life is opinion.

— Marcus Aurelius

Meditations 4.3

Everything existing is in a manner the seed of what will emerge from it.

— Marcus Aurelius

Meditations 4.36

All this is part of the price of being born.

— Seneca

Consolation to Marcia 10.6

When we are invited to a banquet, we take what is set before us; and were one to call upon his host to set fish or tarts before him, he would be deemed absurd. Yet, in the world, we ask the gods for what they do not give, and that, though they have given us so many things.

— Epictetus

Enchiridion 15