在数学的领域里,每一个问题都是发现新事物和深刻见解的机会。
The strength of a response tendency depends on the amount of reinforcement received.
如果你无法飞翔,那就奔跑;如果你无法奔跑,那就快走;如果你无法快走,那就爬行。但无论如何,你必须继续前进。
I'm just trying to be better every day.