Theories are usually the over-hasty efforts of an impatient understanding that would gladly be rid of phenomena, and so puts in their place pictures, notions, nay, often mere words.
Not art and science only, but patience will be required for the work.
I do not know myself, and God forbid that I should.
If I love you, what business is it of yours?
Chess is the touchstone of intellect.
With the growth of knowledge our ideas must from time to time be organized afresh. The change takes place usually in accordance with new maxims as they arise, but it always remains provisional.