The brave man is not only he who overcomes the enemy, but he who is stronger than pleasures.
More men have become great through practice than by nature.
Our sins are more easily remembered than our good deeds.
Nature and education are somewhat similar. The latter transforms man, and in so doing creates a second nature.
It is better to destroy one's own errors than those of others.
Sweet exists by convention, bitter by convention, color by convention; but in reality atoms and the void alone exist