Effort Is A Measure Of A Man.

The Ideas Gained By Men Before They Are Twenty-five Are Practically The Only Ideas They Shall Have In Their Lives.

Psychology Is A Science, And Teaching Is An Art; And Sciences Never Generate Arts Directly Out Of Themselves.

Faith Means Belief In Something Concerning Which Doubt Is Still Theoretically Possible ... Faith Is The Readiness To Act In A Cause The Prosperous Issue Of Which Is Not Certified To Us In Advance.

The Ultimate Test Of What A Truth Means Is The Conduct It Dictates Or Inspires.

Habit Is A Second Nature, Or Rather, It Is 'ten Times Nature'.