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Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.

人們思考得越少，他們說得越多。

解釋：日月的光輝照亮了大地，可它們的內部仍然有黑點，人們謹慎地看待自己憎惡的人，而禍患常常發生在溺愛的人身上。

"In Formula 1, if you stand still, you're going backwards."

黑夜無論怎樣悠長，白晝總會到來。

I’m not a guy that’s going to let my love for the gym down.

最重要的是保持激情。