If it is not right do not do it; if it is not true do not say it.

Marcus Aurelius

Nobody learns what he can do except by trying.

Seneca

Come what may, all bad fortune is to be conquered by endurance.

Virgil

We suffer more in imagination than in reality.

Seneca

When someone is properly grounded in life, they shouldn't have to look outside themselves for approval.

Epictetus

He who overcomes himself is mighty.

Lao Tzu