The weak grow strong by effrontery, the strong by yielding.
The psychologist must avoid all forms of mental physics.
What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.
數(shù)學(xué)中的發(fā)現(xiàn)過(guò)程往往比結(jié)果本身更重要。
我不追隨潮流。我創(chuàng)造潮流。