Nature in no case cometh short of art, for the arts are copiers of natural forms.

Most of what we say and do is not essential. If you can eliminate it, you'll have more time, and more tranquillity. Ask yourself at every moment, 'Is this necessary?'

A man's life is what his thoughts make of it.

The happiness and unhappiness of the rational, social animal depends not on what he feels but on what he does; just as his virtue and vice consist not in feeling but in doing.

That which has died falls not out of the universe. If it stays here, it also changes here, and is dissolved into its proper parts, which are elements of the universe and of thyself. And these too change, and they murmur not".

Things themselves cannot touch the soul, not in the least degree, nor have they admission to the soul nor can they turn or move the soul: it turns and moves itself alone and whatever judgment it may think proper to make, such it makes by remaking for itself the things that present themselves to it

If this is neither my own badness, nor an effect of my own badness, and the common weal is not injured, why am I troubled about it? And what is the harm to the common weal?