逻辑是思考的镜子。
Logic is the mirror of thought.
可持续农业的关键在于创新和对自然的尊重。
你记忆中的一切都不在了,还是忘掉比较好。
学习数学的唯一方法就是做数学。
The greatest happiness of life is the conviction that we are loved; loved for ourselves, or rather, loved in spite of ourselves.
Love is the only sane and satisfactory answer to the problem of human existence.