艺术的挑战在于使不可见的东西变得可见。
The challenge of art is to make the invisible visible.
The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life. You can turn over a new leaf every hour if you choose.
Man is the only creature who refuses to be what he is.
所有科学的统一性仅在于其方法，而不在于其材料。
未来是用来发现的。
"The world is a book, and those who do not travel read only a page."