I can, therefore I am.

Be gentle to all and stern with yourself.

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

If you think you can do it, you can.

If you can dream it, you can do it.

Do not weep do not wax indignant. Understand.

To know oneself, one should assert oneself.

Only the educated are free.

Well done is better than well said.