Can any one deny that the old Israelites conceived Jahveh not only in the image of a man, but in that of a changeable, irritable, and, occasionally, violent man?

Not far from the invention of fire we must rank the invention of doubt.

The ultimate court of appeal is observation and experiment... not authority.

The great end of life is not knowledge but action.

There is far too much of the feeding-bottle in education and young people ought to be supplied with good intellectual food and then left to help themselves.

That mysterious independent variable of political calculation, Public Opinion.

True science and true religion are twin sisters, and the separation of either from the other is sure to prove the death of both. Science prospers exactly in proportion as it is religious; and religion flourishes in exact proportion to the scientific depth and firmness of its basis.