The function of the true state is to impose the minimum restrictions and safeguard the maximum liberties of the people, and it never regards the person as a thing.

A single line in the Bible has consoled me more than all the books I ever read besides.

The question is not so much whether there is life on Mars as whether it will continue to be possible to live on Earth

Why were a few, or a single one, made at all, if only to exist in order to be made eternally miserable, which is infinitely worse than non-existence?

All human knowledge begins with intuitions, proceeds from thence to concepts, and ends with ideas.

I learned to honor human beings, and I would find myself far more useless than the common laborer if I did not believe that this consideration could impart to all others a value establishing the rights of humanity.

Act so as to use humanity, yourself and others, always as an end and never as a means to an end.