All our knowledge merely helps us to die a more painful death than animals that know nothing.

Happiness is rarely absent; it is we that know not of its presence.

An obstacle is not a discouragement. It may become one, but only with our own consent. So long as we refuse to be discouraged, we cannot be discouraged.

I have done what I could do in life, and if I could not do better, I did not deserve it. In vain I have tried to step beyond what bound me.

Our reason may prove what it will: our reason is only a feeble ray that has issued from Nature.

Happiness will never be any greater than the idea we have of it.

There is no soul that does not respond to love, for the soul of man is a guest that has gone hungry these centuries back.