To the young mind every thing is individual, stands by itself. By and by, it finds how to join two things and see in them one nature; then three, then three thousand; and so, tyrannized over by its own unifying instinct, it goes on tying things together, diminishing anomalies, discovering roots running under ground whereby contrary and remote things cohere and flower out from one stem.

But there are higher secrets of culture, which are not for the apprentices, but for proficients. These are lessons only for the brave. We must know our friends under ugly masks. The calamities are our friends.

Research is not seeing what others do not see, it is seeing the same thing as other people and thinking what they do not.

Plato is philosophy, and philosophy, Plato,--at once the glory and the shame of mankind, since neither Saxon nor Roman have availed to add any idea to his categories.

Men are like Geneva watches with crystal faces, which expose the whole movement.

We owe to man higher succors than food and fire. We owe to man, man.

Always do what you are afraid to do.