Jesaja

“It is better to remain silent at the risk of being thought a fool, than to talk and remove all doubt of it.”
― Maurice Switzer, Mrs. Goose, Her Book

“By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.”
― Confucious

“If we knew what it was we were doing, it would not be called research, would it?”
― Albert Einstein

“The fool doth think he is wise, but the wise man knows himself to be a fool.”
― William Shakespeare, As You Like It