Morality is not properly the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.

If I am to constrain you by any law, it must be one by which I am also bound.

Maturity is having the courage to use one's own intelligence!

There is a limit where the intellect fails and breaks down, and this limit is where the questions concerning God and freewill and immortality arise.

It is not God's will merely that we should be happy, but that we should make ourselves happy

The history of the human race, viewed as a whole, may be regarded as the realization of a hidden plan of nature to bring about a political constitution, internally, and for this purpose, also externally perfect, as the only state in which all the capacities implanted by her in mankind can be fully developed.

All the interests of my reason, speculative as well as practical, combine in the three following questions: 1. What can I know? 2. What ought I to do? 3. What may I hope?