写作的行为是一种乐观的行为。
自身无灾无病，感受不到快乐，等到生病卧床，才了解到无灾无病的快乐；家中平安无事，感受不到快乐，等到祸事临头，才体会到平安无事的快乐。
格言是智慧耐用的替代品。
Never stop learning because the world never stops changing.
The hepatitis C discovery was not just my achievement, but the result of many brilliant minds working together.