"If a man's wit be wandering, let him study the mathematics; for in demonstrations, if his wit be called away never so little, he must begin again."

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The hunger and thirst for knowledge, the keen delight in the chase, the good humored willingness to admit that the scent was false, the eager desire to get on with the work, the cheerful resolution to go back and begin again, the broad good sense, the unaffected modesty, the imperturbable temper, the gratitude for any little help that was given - all these will remain in my memory though I cannot paint them for others.

— Frederic William Maitland