The essence of liberty is the ability to pursue one’s own goals without arbitrary interference from others.

"What's terrible is to pretend that second-rate is first-rate. To pretend that you don't need love when you do; or you like your work when you know quite well you're capable of better."

The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.

"A man’s work is nothing but this slow trek to rediscover, through the detours of art, those two or three great and simple images in whose presence his heart first opened."

女性劳动力参与的静默革命重塑了家庭、市场和社会。