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

Despair exaggerates not only our misery but also our weakness.

When an idea is not robust enough to stand expression in simple terms, it is a sign that it should be rejected.

The favorites of fortune or of fame topple from their pedestals before our eyes without diverting us from ambition.

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.

Jealousy is the paralysis of love.

The young suffer less from their own errors than from the cautiousness of the old.