煤炭是我国的主体能源，在相当长时期内仍将是我国能源安全的基石。
The people who are crazy enough to think they can change the world are the ones who do.
The future of food security lies beneath the waves, if we're wise enough to cultivate it properly.
I prefer to buy stocks that are not widely followed by analysts.
The way to right wrongs is to turn the light of truth upon them.
The best way to learn a new programming language is by writing programs in it.