The one real goal of education is to leave a person asking questions.
It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, and comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows the great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who know neither victory nor defeat.
What we hope ever to do with ease, we must learn first to do with diligence.
The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
Critical thinking is not something you do once with an issue and then drop it. It requires that we update our knowledge as new information comes in.
It is the mark of an educated mind to be able to entertain a thought without accepting it.
Mistakes are a fact of life. It is the response to the error that counts.
You can make anything by writing.
A great many people think they are thinking when they are merely rearranging their prejudices.
People can be extremely intelligent, have taken a critical thinking course, and know logic inside and out. Yet they may just become clever debaters, not critical thinkers, because they are unwilling to look at their own biases.