The true method of knowledge is experiment.

Humility and knowledge in poor clothes excel pride and ignorance in costly attire.

Reading furnishes the mind only with materials of knowledge it is thinking that makes what we read ours.

As the biggest library if it is in disorder is not as useful as a small but well-arranged one, so you may accumulate a vast amount of knowledge but it will be of far less value than a much smaller amount if you have not thought it over for yourself.

The only good is knowledge, and the only evil is ignorance.

If education is always to be conceived along the same antiquated lines of a mere transmission of knowledge, there is little to be hoped from it in the bettering of man's future. For what is the use of transmitting knowledge if the individual's total development lags behind?

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

Knowledge is power only if man knows what facts not to bother with.

I would rather excel in the knowledge of what is excellent, than in the extent of my power and possessions.

I had therefore to remove knowledge, in order to make room for belief.