It's always too early to quit.

The secret of getting ahead is getting started.

I can, therefore I am.

If you're going through hell, keep going.

To know oneself, one should assert oneself.

Do not weep do not wax indignant. Understand.

Things do not happen. Things are made to happen.

You never know what motivates you.

Be thine own palace, or the world's thy jail.