Knowledge is two-fold, and consists not only in an affirmation of what is true, but in the negation of that which is false.

That writer does the most who gives his reader the most knowledge and takes from him the least time.

Helping someone come to a saving knowledge of Christ is the greatest achievement possible.

In formal logic, a contradiction is the signal of defeat, but in the evolution of real knowledge it marks the first step in progress toward a victory.

Golf... is the infallible test. The man who can go into a patch of rough alone, with the knowledge that only God is watching him, and play his ball where it lies, is the man who will serve you faithfully and well.

Life is a travelling to the edge of knowledge, then a leap taken.

The will to do springs from the knowledge that we can do.

We do not need to be shoemakers to know if our shoes fit, and just as little have we any need to be professionals to acquire knowledge of matters of universal interest.

True knowledge lies in knowing how to live.

Take from the philosopher the pleasure of being heard and his desire for knowledge ceases.