They muddy the water, to make it seem deep.

Friedrich Nietzsche

There is no greater danger than underestimating your opponent.

Lao Tzu

Trust yourself. You know more than you think you do.

Dr. Benjamin Spock

If you show yourself, you will not be seen. If you affirm yourself, you will not shine. If you boast, you will have no merit. If you promote yourself, you will have no success.

Lao Tzu

Waste no more time arguing what a good man should be, be one.

Marcus Aurelius

Anger may repast with thee for an hour, but not repose for a night; the continuance of anger is hatred, the continuance of hatred turns malice.

Francis Quarles