Nothing but courage can guide life.

The most absurd and reckless aspirations have sometimes led to extraordinary success.

Children are taught to fear and obey; the avarice, pride, or timidity of parents teaches children economy, arrogance, or submission. They are also encouraged to be imitators, a course to which they are already only too much inclined. No one thinks of making them original, courageous, independent.

The fruit derived from labor is the sweetest of pleasures.

To execute great things, one should live as though one would never die.

Whatever affection we have for our friends or relations, the happiness of others never suffices for our own.

As a house implies a builder, and a garment a weaver, and a door a carpenter, so does the existence of the Universe imply a Creator.