老师声称代数是完美而自然的、我们应无条件地接受它，而我甚至不能理解什么是数。对我来说数学课完全就是恐怖和折磨。我完全不理解代数，这使我胆怯得不敢问任何问题。
Sustainability isn't just an option; it's our responsibility to future generations.
To supply an explicit moral tag to an evolving and compulsive dramatic image seems to me facile, impertinent and dishonest.
I'm not a perfectionist, but I like to feel that things are done well.
In chemistry, as in life, the most transformative reactions often occur at the boundaries between disciplines.