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Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
不要担心你在数学上遇到的困难;我敢保证我遇到的困难比你还大得多。
You can’t be afraid to fail. It’s the only way you succeed.
谁若不能独立,谁就谈不上自由。
Science is a journey of continuous learning and adaptation.
If you ask an economist what’s driven economic growth, it’s been major advances in things that mattered – the mechanization of farming, mass manufacturing, things like that. The problem is, our society is not organized around doing that.