He who knows all the answers has not been asked all the questions.

There is a wisdom in this beyond the rules of physic. A man’s own observation, what he finds good of and what he finds hurt of, is the best physic to preserve health.

The opinion of 10,000 men is of no value if none of them know anything about the subject.

No one can draw more out of things, books included, than he already knows. A man has no ears for that to which experience has given him no access.

Knowing your own darkness is the best method for dealing with the darknesses of other people.

One cannot conceive anything so strange and so implausible that it has not already been said by one philosopher or another.

There is nothing so absurd or ridiculous that has not at some time been said by some philosopher.

They [the Americans] have all a lively faith in the perfectibility of man, they judge that the diffusion of knowledge must necessarily be advantageous, and the consequences of ignorance fatal; they all consider society as a body in a state of improvement, humanity as a changing scene, in which nothing is, or ought to be, permanent; and they admit that what appears to them today to be good, may be superseded by something better tomorrow.

I've learned silence from the talkative, toleration from the intolerant, and kindness from the unkind.

Our destiny exercises its influence over us even when, as yet, we have not learned its nature; it is our future that lays down the law of our today.

I roamed the countryside searching for answers to things I did not understand.

Smart people learn from everything and everyone, average people from their experiences, stupid people already have all the answers.

You never had time to learn. They threw you in and told you the rules and the first time they caught you off base they killed you.

The poets and philosophers before me discovered the unconscious; what I discovered was the scientific method by which the unconscious can be studied.

I had long since taught myself to follow the inner voice. I delighted in submitting to it. To act against it would be difficult and painful to me.

I keep six honest serving men (they taught me all I knew); Their names are What and Why and When And How and Where and Who.

College isn't the place to go for ideas.

No amount of evidence will ever persuade an idiot.

The positive thinker see the invisible, feels the intangible, and achieve the impossible.

It is usually futile to try to talk facts and analysis to people who are enjoying a sense of moral superiority in their ignorance.

At the end of the day, we can endure more than we think we can.

It is a very great thing to be able to think as you like; but, after all, an important question remains: what you think.

Sow a thought, and you reap an act; Sow an act, and you reap a habit; Sow a habit, and you reap character; Sow a character, and you reap a destiny.

All truly great thoughts are conceived by walking.

There is as much greatness of mind in acknowledging a good turn, as in doing it.

If you want material prosperity, you must first think prosperity thoughts, and then make a habit of doing so, for the thing that keeps most people poor is the sheer habit of poverty thinking.

If you spend too much time thinking about a thing, you'll never get it done.