Facts in books, statistics in encyclopedias, the ability to use them in men's heads.

Facts in books, statistics in encyclopedias, the ability to use them in men's heads.

Never seem wiser, nor more learned, than the people you are with. Wear your learning, like your watch, in a read more

Never seem wiser, nor more learned, than the people you are with. Wear your learning, like your watch, in a private pocket: and do not merely pull it out and strike it; merely to show that you have one.

In order to shake a hypothesis, it is sometimes not necessary to do anything more than push it as far read more

In order to shake a hypothesis, it is sometimes not necessary to do anything more than push it as far as it will go.

Never practice two vices at once.

Never practice two vices at once.

Had there been no difficulties and no thorns in the way, then man would have been in his primitive state read more

Had there been no difficulties and no thorns in the way, then man would have been in his primitive state and no progress made in civilization and mental culture.

I am glad that I paid so little attention to good advice; had I abided by it I might have read more

I am glad that I paid so little attention to good advice; had I abided by it I might have been saved from some of my most valuable mistakes.

Once the toothpaste is out of the tube, it's hard to get it back in!

Once the toothpaste is out of the tube, it's hard to get it back in!

Wisdom is knowing when to speak your mind and when to mind your speech.

Wisdom is knowing when to speak your mind and when to mind your speech.

The winds and waves are always on the side of the ablest navigators.

The winds and waves are always on the side of the ablest navigators.