A river is more than an amenity, it is a treasure.

To rest upon a formula is a slumber that, prolonged, means death.

To us who remain behind is left this day of memories. Every year--in the full tide of spring, at the height of the symphony of flowers and love and life--there comes a pause, and through the silence we hear the lonely pipe of death.

The riders in a race do not stop when they reach the goal. There is a little finishing canter before coming to a standstill. There is time to hear the kind voices of friends and say to oneself, The work is done.

Research and writing are lonely occupations. It is easy to become discouraged in solitary confinement.

Any new formula which suddenly emerges in our consciousness has its roots in long trains of thought; it is virtually old when it first makes its appearance among the recognized growths of our intellect.

It's a good thing to be rich and a good thing to be strong, but it is a better thing to be beloved of many friends.