Men will cease to be fools only when they cease to be men.
We know nothing in reality; for truth lies in an abyss.
The brave man is not only he who overcomes the enemy, but he who is stronger than pleasures.
No power and no treasure can outweigh the extension of our knowledge.
Raising children is an uncertain thing; success is reached only after a life of battle and worry.
Good breeding in cattle depends on physical health, but in men on a well-formed character.