Thinking in its lower grades is comparable to paper money, and in its higher forms it is a kind of poetry. – Havelock Ellis, The Dance of Life, 1923

…the thoughtful excitement of lonely rambles, of gardening, and of other like occupations, where the mind has leisure to must during the healthful activity of the body, with the fresh and wakeful breezes blowing round it… – Augustus William Hare and Julius Charles Hare, Guesses at Truth, by Two Brothers

Often the hands will solve a mystery that the intellect has struggled with in vain. – Carl G. Jung