自由的本质在于能够在不受他人任意干涉的情况下追求个人目标。
The essence of liberty is the ability to pursue one’s own goals without arbitrary interference from others.
The elegance of a mathematical proof is in its simplicity and clarity.
"The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'"