Perhaps the pleasure one feels in writing is not the infallible test of the literary value of a page; perhaps it is only a secondary state which is often superadded, but the want of which can have no prejudicial effect on it. Perhaps some of the greatest masterpieces were written while yawning.

Medicine being a compendium of the successive and contradictory mistakes of medical practitioners, when we summon the wisest of them to our aid, the chances are that we may be relying on a scientific truth the error of which will be recognized in a few years time.

I had come in time to learn that it was a mistake to smile a friendly smile when somebody made a fool of me.

People wish to learn to swim and at the same time to keep one foot on the ground.

Human altruism which is not egoism, is sterile.

The tiny, initial clue ... by allowing us to imagine what we do not know, stimulates a desire for knowledge.

The only true voyage of discovery, . . . would be not to visit strange lands but to possess other eyes.