519
First let a man teach himself, and then he will be taught by others.
520
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. We may surmise, or even see quite well, that such theories are make-shifts; but do not passion and party-spirit love a make-shift at all times? And rightly, too, because they stand in so much need of it.