Man learns more readily and remembers more willingly what excites his ridicule than what deserves esteem and respect.
Science may set limits to knowledge, but should not set limits to imagination.
The secret to happiness is to face the fact that the world is horrible.
Men fear thought as they fear nothing else on earth - more than ruin, more even than death. Thought is subversive and revolutionary, destructive and terrible, thought is merciless to privilege, established institutions, and comfortable habits; thought is anarchic and lawless, indifferent to authority, careless of the well-tried wisdom of the ages. Thought looks into the pit of hell and is not afraid. . . Thought is great and swift and free, the light of the world, and the chief glory of man.
We may define "faith" as the firm belief in something for which there is no evidence. Where there is evidence, no one speaks of "faith. " We do not speak of faith that two and two are four or that the earth is round. We only speak of faith when we wish to substitute emotion for evidence. The substitution of emotion for evidence is apt to lead to strife, since different groups, substitute different emotions.
Envy was one of the most potent causes of unhappiness.
I believe four ingredients are necessary for happiness: health, warm personal relations, sufficient means to keep you from want, and successful work.
Do there exist many worlds, or is there but a single world? This is one of the most noble and exalted questions in the study of Nature.
I realize my arms aren't as toned as Halle Berry's but I don't want them to be.
If intellect and will are correctly centered, the emotional life takes on harmony.
Guns are the crutches of the impotent.