"The best stories are the ones that make you feel less alone."

Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.

农时：指春耕、夏耘、秋收三个时令。与其等灾荒来了再想办法补救，不如早防备灾荒，而防备灾荒最好就是抓住农时。

The mind is an information processing system that operates on symbolic representations.

"The essence of mathematics is not to make simple things complicated, but to make complicated things simple."