在以下文本的每一行前面添加一个编号。
'We are not now that strength which in old days
Moved earth and heaven, that which we are, we are;
One equal temper of heroic hearts,
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.'
1. We are not now that strength which in old days
2. Moved earth and heaven, that which we are, we are;
3. One equal temper of heroic hearts,
4. Made weak by time and fate, but strong in will
5. To strive, to seek, to find, and not to yield.