Creativity requires the courage to let go of certainties.
The Eskimos had fifty-two names for snow because it was important to them: there ought to be as many for love.
Be realistic, demand the impossible!
我们不是从经验中学习……我们是从对经验的反思中学习。
黄金时代在我们面前而不在我们背后。
最好的肥料是将农民的知识与自然的智慧相结合。
Quality should never be compromised, because reputation is built over a lifetime but lost in a moment.