Be gentle to all and stern with yourself.

To know oneself, one should assert oneself.

Well done is better than well said.

Do not weep do not wax indignant. Understand.

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

The most effective way to do it, is to do it.

By failing to prepare, you are preparing to fail.

It's always too early to quit.

Quality is not an act, it is a habit.