If I sought to answer all of the criticisms that cross my desk, my secretaries would be engaged in little else in the course of the day, and I would have no time for constructive work.

We have errors to correct. We have probably had too good an opinion of human nature in forming our confederation.

Such is the supreme folly of man that he labours so as to labour no more.

There are three classes of people: those who see, those who see when they are shown, those who do not see.

He only moves toward the perfection of his art whose criticism surpasses his achievement.

Surely when a man is painting a picture he ought not refuse to hear any man's opinion... Since men are able to form a true judgement as to the works of nature, how much more does it behoove us to admit that they are able to judge our faults.