The mathematician has reached the highest rung on the ladder of human thought.
The greatest task before civilization at present is to make machines what they ought to be, the slaves, instead of the masters of men.
The family only represents one aspect, however important an aspect, of a human being's functions and activities. A life is beautiful and ideal or the reverse, only when we have taken into our consideration the social as well as the family relationship.
The prevalence of suicide, without doubt, is a test of height in civilization; it means that the population is winding up its nervous and intellectual system to the utmost point of tension and that sometimes it snaps.
Thinking in its lower grades, is comparable to paper money, and in its higher forms it is a kind of poetry.
The art of dancing stands at the source of all the arts that express themselves first in the human person. The art of building, or architecture, is the beginning of all the arts that lie outside the person; and in the end they unite.
What we call progress is the exchange of one nuisance for another nuisance.