A living thing is distinguished from a dead thing by the multiplicity of the changes at any moment taking place in it.
The behavior of men to the lower animals, and their behavior to each other, bear a constant relationship.
Those who have never entered upon scientific pursuits know not a tithe of the poetry by which they are surrounded.
An argument fatal to the communist theory, is suggested by the fact, that a desire for property is one of the elements of our nature.
The Republican form of government is the highest form of government: but because of this it requires the highest type of human nature, a type nowhere at present existing.
[L]et us not overlook the further great fact, that not only does science underlie sculpture, painting, music, poetry, but that science is itself poetic. The current opinion that science and poetry are...
Objects we ardently pursue bring little happiness when gained most of our pleasures come from unexpected sources.
Education has for its object the formation of character.