If I am not for myself, who will be for me? If I am not for others, what am I? And if not now, when?

If I am not for myself, who will be for me? If I am not for others, what am I? And if not now, when?

我若不为自己，谁为我呢?如果我不为别人，我是谁?如果不是现在，什么时候?

-- Rabbi Hillel 拉比希列