My father, the practical joker, did not care for practical jokes on himself; he did not encourage the practice in me.

Nothing is done. Everything in the world remains to be done or done over. The greatest picture is not yet painted, the greatest play isn't written, the greatest poem is unsung. There isn't in all the world a perfect railroad, nor a good government, nor a sound law. Physics, mathematics, and especially the most advanced and exact of the sciences are being fundamentally revised. . . Psychology, economics, and sociology are awaiting a Darwin, whose work in turn is awaiting an Einstein.

The unknown is the province of the student; it is the field for his lifes adventure, and it is a wide field full of beckonings

The best picture has not yet been painted; the greatest poem is still unsung; the mightiest novel remains to be written; the divinest music has not been conceived, even by Bach. In science, probably ninety-nine percent of the knowable has not yet been discovered.

My mother would thump me sharply on the head with a thimble or a spoon if I became too noisy with the whistle when I was playing I was a steamboat captain. She had no sense of the dignity of command.

First in violence, deepest in dirt, lawless, unlovely, ill-smelling, irreverent, new; an overgrown gawk of a - village, the "tough" among cities, a spectacle for the nation.

The politer the society, the greater the lies it requires.