A Quote by J.W. Glaisher on effort, good, instinct, learning, tact, trust, and work
The mathematician requires tact and good taste at every step of his work, and he has to learn to trust to his own instinct to distinguish between what is really worthy of his efforts and what is not.
Source: H. Eves Mathematical Circles Squared, Boston: Prindle, Weber and Schmidt, 1972.
Contributed by: Zaady