If you want to change the world, start with yourself.

He who would change the world should first change himself.

Let him who would move the world first move himself.

In a world, man must create his own essence: it is in throwing himself into the world, suffering there, struggling there, that he gradually defines himself.

...man first of all exists, encounters himself, surges up in the world – and defines himself afterwards.

When the fight begins within himself,
A man's worth something.

He who would know the world must first manufacture it.

It is impossible to improve the world if first the man does not improve

In a word, man must create his own essence: it is in throwing himself into the world, suffering there, struggling there, that he gradually defines himself.

The first duty of a man is to think for himself

The place to improve the world is first in one's own heart and head and hands, and then work outward from there.

if a man would make his world large, he must be always making himself small.

Man is one world, and hath
Another to attend him.

Only a man who is at one with the world can be at one with himself.