The most dangerous chemical in any plant isn't the one in the vats - it's complacency.
世界上最好和最美麗的東西是看不見甚至摸不著的 - 它們必須用心去感受。
學(xué)習(xí)數(shù)學(xué)的最好方法就是做數(shù)學(xué)。
"The key to success is to focus on long-term value creation rather than short-term profits."
Next time, leave a little earlier. Your son is pleading for you
在數(shù)學(xué)中，你不理解事物。你只是習(xí)慣了它們。