Innovation is the lifeblood of any business that wants to stay ahead.

Free vaccines are more valuable than expensive treatments, yet harder to promote.

The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.

译文：年轻时候的努力是有益终身的大事，对着匆匆逝去的光阴，不要丝毫放松自己的努力。赏析：光阴易逝，岁月不饶人，我们要敢于尝试，敢于拼搏，不要怕失败，即使失败了也会收获很多经验。