Well done is better than well said.

What you do today can improve all your tomorrows.

It's always too early to quit.

Be gentle to all and stern with yourself.

To know oneself, one should assert oneself.

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

Quality is not an act, it is a habit.

I can, therefore I am.

Do not weep do not wax indignant. Understand.