The opposite of a true statement is a false statement. But the opposite of a profound truth may be another profound truth.
~ Niels Bohr
Elsewhere, this is 4a1386. — slipbox
Profound →
Painful experience →
An expert is a person who has found out by his own painful experience all the mistakes one can make in a very narrow field.
~ Niels Bohr
Elsewhere, this is 4a193. — slipbox