The mass of mankind is divided into two classes, the Sancho Panza's who have a sense for reality, but no ideals, and the Don Quixote's with a sense for ideals, but mad.

Science is nothing but developed perception, interpreted intent, common sense rounded out and minutely articulated.

Beauty as we feel it is something indescribable; what it is or what it means can never be said.

Life is judged with all the blindness of life itself.

It is always pleasant to be urged to do something on the ground that one can do it well.

Friends need not agree in everything or go always together, or have no comparable other friendships of the same intimacy.

My remembrance of the past is a novel I am constantly recomposing; and it would not be a historical novel, but sheer fiction, if the material events which mark and ballast my career had not their public dates and characters scientifically discoverable.