学校必须代表当下的生活——对孩子来说，这种生活与他在家庭、邻里或操场上所进行的生活一样真实和重要。
数学的力量在于它的普遍性和超越文化界限的能力。
The great and chief end, therefore, of men's uniting into commonwealths and putting themselves under government is the preservation of their property.
Every time we teach a child something, we keep him from inventing it himself.
The theory of computation is not just about solving problems, but also about understanding the limits of what can be computed.
Art is the only place where I feel free.
Mathematics is the organ with which we comprehend the phenomena of nature.