A drop of water is not immortal; it can be resolved into oxygen and hydrogen. If, therefore, a drop of water were to maintain that it had a quality of aqueousness which would survive its dissolution we should be inclined to be skeptical. In like manner we know that the brain is not immortal.

The solution of the difficulties which formerly surrounded the mathematical infinite is probably the greatest achievement of which our age has to boast.

To avoid the various foolish opinions to which mankind are prone, no superhuman genius is required. A few simple rules will keep you, not from all error, but from silly error.

There is no nonsense so errant that it cannot be made the creed of the vast majority by adequate governmental action.

The best practical advice I can give to the present generation is to practice the virtue which the Christians call love.

Americans need rest, but do not know it. I believe this to be a large part of the explanation of the crime wave in the United States.

The first step in wisdom, as well as in morality, is to open the windows of the ego as wide as possible.