In the Eye of the Beholder An Essay from Field Notes on Science and Nature by Jonathan Kingdon Haven't you noticed?Wordless questioningOutlinesAgents of thought and experiment
When the hour of dire need draws nigh Keep the faculty of effort alive in you by a little gratuitous exercise every day. That is, be systematically ascetic or heroic in little unnecessary points, do every day or two something for no other reason than that you would rather not do it, so that when the hour of dire need draws nigh, it may find you not unnerved. William James, Principles of Psychology wisdomneed