Mathematics is the music of reason.
数学是理性的音乐。
在创造性思维中,从盲目操作到理解的转变至关重要
Old paint on canvas, as it ages, sometimes becomes transparent. When that happens it is possible, in some pictures, to see the original lines: a tree will show through a woman's dress, a child makes way for a dog, a large boat is no longer on an open sea. That is called pentimento because the painter 'repented,' changed his mind. Perhaps it would be as well to say that the old conception, replaced by a later choice, is a way of seeing and then seeing again.
Just as in a good novel, a good program must be full of interesting ideas, and very, very few words.
La verdadera patria del hombre es la infancia.
农业中唯一不变的就是变化——拥抱它吧。