世界建立在化学之上，而我们才刚刚开始理解它是如何构建的。

儿童值得拥有既让他们高兴又挑战他们的艺术。

"The truth has never been of any real value to any human being - it is a symbol for mathematicians and philosophers to pursue. In human relations kindness and lies are worth a thousand truths."

Philosophy is an ornament in prosperity, a refuge in adversity, and a provision in old age.