Fine art is the subtlest, the most seductive, the most effective instrument of moral propaganda in the world, excepting only the example of personal conduct; and I waive even this exception in favor of the art of the stage, because it works by exhibiting examples of personal conduct made intelligible and moving to crowds of unobservant unreflecting people to whom real life means nothing.

It's easier to replace a dead man than a good picture.

We learn from history that we learn nothing from history.

Every doctor will allow a colleague to decimate a whole countryside sooner than violate the bond of professional etiquette by giving him away.

I must remind you that our credulity is not to be measured by the truth of the things we believe. When men believed that the earthwas flat, they were not credulous: they were using their common sense, and, if asked to prove that the earth was flat, would have said simply, "Look at it." Those who refuse to believe that it is round are exercising a wholesome skepticism.

You have learnt something. That always feels at first as if you had lost something.

It is not true that men can be divided into absolutely honest persons and absolutely dishonest ones. Our honesty varies with the strain put on it.