I can, therefore I am.

You never know what motivates you.

Never complain and never explain.

What you do today can improve all your tomorrows.

Do not weep do not wax indignant. Understand.

Leap, and the net will appear.

The wise does at once what the fool does at last.

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

To know oneself, one should assert oneself.