Cruel persecutions and intolerance are not accidents, but grow out of the very essence of religion, namely, its absolute claims.

If religion cannot restrain evil, it cannot claim effective power for good.

Wisdom is not to be obtained from textbooks, but must be coined out of human experience in the flame of life.

All logic texts are divided into two parts. In the first part, on deductible logic, the fallacies are explained; in the second part, on inductive logic, they are committed.

Cruel persecutions and intolerance are not accidents, but grow out of the very essence of religion, namely, its absolute claims.

The method of exposition which philosophers have adopted leads many to suppose that they are simply inquiries, that they have no interest in the conclusions at which they arrive, and that their primary concern is to follow their premises to their logical conclusions.

Lastly, literature and philosophy both allow past idols to be resurrected with a frequency which would be truly distressing to a sober scientist.