It took years for Einstein"s theory to gain acceptably.

Man was, is and always will be trying to improve his living conditions.

The wound soldier made an effort to stand up, but the general stopped him.

All of them are （） at Lana"s achievement.

事實勝于雄辯。

It is when you nearly lose someone when you become fully conscious of how much you value them.

What effect has the Internet had on music piracy

I thought you might be tired, （） is why I decided to help you.

There is nothing so admirable as a man whose sacrifices his life and happiness for others. 

An idle youth, a needy age.