When a nation is on the downward path, when it feels its belief in its own future, its hope of freedom slipping from it, when it begins to see submission as a first necessity and the virtues of submission as measures of self-preservation, then it must overhaul its God.

The most dangerous physicians are those born actors who imitate born physicians with a perfectly deceptive guile.

A person must have a good memory to keep the promises he has made. A person must have a strong imagination to be able to have pity. So closely is morality tied to the quality of the intellect.

Wherever on earth the religious neurosis has appeared we find it tied to three dangerous dietary demands: solitude, fasting, and sexual abstinence.

No, life has not disappointed me. On the contrary, I find it truer, more desirable and mysterious every year -- ever since the day when the great liberator came to me: the idea that life could be an experiment of the seeker for knowledge -- and not a duty, not a calamity, not trickery.

Life, and you, and I, and all of us together became for a while interesing to ourselves once more.

Whoever feels predestined to see and not to believe will find all believers too noisy and pushy: he guards against them.