By no amount of reasoning can we altogether eliminate all contingency from our world. Moreover, pure speculation alone will not enable us to get a determinate picture of the existing world. We must eliminate some of the conflicting possibilities, and this can be brought about only by experiment and observation.

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.

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.

Again, both literature and philosophy work by appealing to certain reigning idols.

Let philosophy resolutely aim to be as scientific as possible, but let her not forget her strong kinship with literature.

The picture which the philosopher draws of the world is surely not one in which every stroke is necessitated by pure logic.