当你不得不用到微积分或生化学继续进行时，那你有必要回炉重炼了。
While this isn't going to work for your advanced level calculus or biochemical courses, the idea is that you should dumb down the information so it becomes obvious.
当你坚持的时候，你不要放弃……你要继续进行。
很难说什么时分是放弃的正确工夫，但我认为通常是当你本人觉得你的想法曾经用完，你没有看到任何途径可以继续进行尝试。
It's hard to say when is the right time to give up, but I think it's usually when you yourself feel you have run out of ideas, and you don't see any pathways to keep experimenting further.
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