What the learned world tends to offer is one second-hand scrap of information illustrating ideas derived from another second-hand scrap of information. The second-handedness of the learned world is the secret of its mediocrity.

Without adventure all civilization is full of decay. Adventure rarely reaches its predetermined end. Columbus never reached China.

The worship of God is not a rule of safety - it is an adventure of the spirit, a flight after the unattainable.

There is no greater hindrance to the progress of thought than an attitude of irritated party-spirit.

On the ostensible exactitude of certain branches of human knowledge, including mathematics. The exactness is a fake.

Religion will not regain its old power until it can face change in the same spirit as does science.

When you're average, you're just as close to the bottom as you are the top.