译文：做好事就像登山一样艰难，做坏事就像山崩一样容易。

实现明天理想的唯一障碍是今天的疑虑。

最好的书……是那些告诉你你已经知道的事情的书。

The difference between the impossible and the possible lies in a person's determination.

If you’re horrible to me, I’m going to write a song about it, and it won’t be a good one.