数学不仅仅是关于数字、方程、计算或算法:它是关于理解的。
The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.
Beware of the Turing tar-pit in which everything is possible but nothing of interest is easy.