The debt we owe to the play of imagination is incalculable.

We should not pretend to understand the world only by the intellect. The judgement of the intellect is only part of the truth.

Often the hands will solve a mystery that the intellect has struggled with in vain.

Mistakes are, after all, the foundations of truth, and if a man does not know what a thing is, it is at least an increase in knowledge if he knows what it is not.

Knowledge rests not upon truth alone, but upon error also.