The movements of exaltation which belong to genius are egotistic by their very nature. A calm, clear mind, not subject to the spasms and crises which are so often met with in creative or intensely perceptive natures, is the best basis for love or friendship. - Observe, I am talking about minds. I won't say, the more intellect, the less capacity for loving; for that would do wrong to the understanding and reason; - but on the other hand, that the brain runs away with the heart's best blood, which gives the world a few pages of wisdom or sentiment or poetry, instead of making one other heart happy, I have no question.
Oliver Wendell Holmes, in 'The Autocrat of the Breakfast-Table'