The word 'happiness' would lose its meaning if it were not balanced by sadness.

Man needs difficulties they are necessary for health.

Who has fully realized that history is not contained in thick books but lives in our very blood?

All the works of man have their origin in creative fantasy. What right have we then to depreciate imagination.

Without this playing with fantasy no creative work has ever yet come to birth. The debt we owe to the play of the imagination is incalculable.

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.