解决一个数学问题就是揭开宇宙拼图的一块。
To solve a mathematical problem is to uncover a piece of the universal puzzle.
The environment shapes behavior through the mechanism of reinforcement.
Teaching is the most glorious profession under the sun.
胜利很棒，但从失败中学习更重要。
Sun don't shine forever, but as long as it's here then we might as well shine together.
当你面对一个拧不动的螺栓或螺丝钉的时候：右转是拧紧，左转是拧松。
简单是可靠的前提条件。