Thankfulness is the beginning of gratitude. Gratitude is the completion of thankfulness. Thankfulness may consist merely of words. Gratitude is shown in acts.

A man without passion is only a latent force, only a possibility, like a stone waiting for the blow from the iron to give forth sparks.

Our duty is to be useful, not according to our desires but according to our powers.

A belief is not true simply because it is useful.

You desire to know the art of living, my friend? It is contained in one phrase: make use of suffering.

The growth and development of the soul is more important than power and glory.

The spirit of sarcasm lives and thrives in the midst of universal wreck; its balls are enchanted and itself invulnerable, and it braves retaliations and reprisals because itself is a mere flash, a bodiless and magical nothing.