Every life contains its own mysteries, and the biographer must respect the unknowable.

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

数学的真正力量在于它能够揭示支配宇宙的隐藏模式和结构。

将传统农业智慧与现代技术结合是成功的关键。

A garden must combine the poetic and the mysterious with a feeling of serenity and joy.

"Consciousness is not an entity but a process."