The isness of things is well worth studying; but it is their whyness that makes life worth living.
Notes from Wikiquote
"These words should be ready for instant use by every honest scientist➖ 'I don't know.'
Quote text and notes from Wikiquote: William Beebe (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.