maybe -simplicity- will apper obvious after the hard path to reach it. maybe -obvious- is a (very) relative concept:

some are nice (obvious?) "Find your tribe by filtering people, not converting them".. others appear more relative to the context.. "Stereotypes exist for a reason", sound like: every stereotype has it's (mostrly wrong) reason..

"Practice doesn’t make perfect. Practice makes permanent" remind me: "If i study, i know. If i do, i understand"

Some reminds me Perlis epigrams.. like "Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it." http://www.cs.yale.edu/homes/perlis-alan/quotes.html

If they were really obvious they wouldn't be listed. I think "aphorisms" is probably the right word.

> stereotypes exist for a reason

True, but also a way of making avoidable mistakes.