Knowledge is of two kinds: we know a subject ourselves, or we know where we can find information upon it.

Man is not weak, knowledge is more than equivalent to force. The master of mechanics laughs at strength.

An extensive knowledge is needful to thinking people-it takes away the heat and fever; and helps, by widening speculation, to ease the burden of the mystery.

Forasmuch as many people study more to have knowledge than to live well therefore ofttimes they err and bring forth little fruit or none.

Liberty without learning is always in peril, and learning without liberty is always in vain.

To know things well, we must know them in detail; but as that is almost endless, our knowledge is always superficial and imperfect.

Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment.

Every step by which men add to their knowledge and skills is a step also by which they can control other men.

It is an anomaly that information, the one thing most necessary to our survival as choosers of our own way, should be a commodity subject to the same merchandising rules as chewing gum.

A reading-machine, always wound up and going, He mastered whatever was not worth the knowing.