If the job has been correctly done when a common stock is purchased, the time to sell it is—almost never.
要记住,人之所以走入迷途,并不是由于他的无知,而是由于他自以为知。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
森林的真正价值不能仅用木材体积来衡量;它的价值在于它所维持的生命。