#pretentiousness

"The only thing more dangerous than ignorance is the pretense of intelligent ignorance. The former is teachable; the latter is not."

"We're very familiar with the idea that some things are so complex they're beyond our comprehension. This not only keeps us solving and experimenting but also distracted. Many things are really so simple we can't see them under our big noses."

"A sign of a lover of wisdom is his delight in not running his mouth about things he doesn't know."