When one does not love too much, one does not love enough.

The present letter is a very long one, simply because I had no leisure to make it shorter.

I know whom I have believed.

The last proceeding of reason is to recognize that there is an infinity of things which are beyond it. There is nothing so conformable to reason as this disavowal of reason.

We run carelessly to the precipice, after we have put something before us to prevent us seeing it.

We should seek the truth without hesitation; and, if we refuse it, we show that we value the esteem of men more than the search for truth.

I can approve of those only who seek in tears for happiness.