By nature's kindly disposition most questions which it is beyond a man's power to answer do not occur to him at all.
The irrational in the human has something about it altogether repulsive and terrible, as we see in the maniac, the miser, the drunkard or the ape.
Nothing so much enhances a good as to make sacrifices for it.
It is easier to make a saint out of a libertine than out of a prig.
Sanity is a madness put to good uses; waking life is a dream controlled.
Science is nothing but developed perception, interpreted intent, common sense rounded out and minutely articulated.
Category: Science And Scientists
To be interested in the changing seasons is, in this middling zone, a happier state of mind than to be hopelessly in love with spring.
Skepticism is the chastity of the intellect.
The empiricist... thinks he believes only what he sees, but he is much better at believing than at seeing.
There is a kind of courtesy in skepticism. It would be an offense against polite conventions to press our doubts too far.
Society is like the air, necessary to breathe but insufficient to live on.
The universe, as far as we can observe it, is a wonderful and immense engine.
The spirit's foe in man has not been simplicity, but sophistication.
Category: Spirit And Spirituality
Men become superstitious, not because they have too much imagination, but because they are not aware that they have any.
Oaths are the fossils of piety.