• Life is in short cycles or periods; we are quickly tired, but we have rapid rallies. A man is spent by his work, starved, prostrate; he will not lift his hand to save his life; he can never think more. He sinks into deep sleep and wakes with renewed youth, with hope, courage, fertile in resources, and keen for daring adventure.

    Ralph Waldo Emerson (2010). “Collected Works of Ralph Waldo Emerson, Volume VIII: Letters and Social Aims”, p.156, Harvard University Press