如果你希望成功，当以恒心为良友、以经验为参谋、以谨慎为兄弟、以希望为哨兵。
Changing the destructive things you say to yourself when you experience the setbacks that life deals all of us is the central skill of optimism.
【讲解】：（教学生）不到他苦思冥想怎么也弄不明白的时候，不去开导他；不到他想说而又说不出来的时候，不去启发他。告诉他（四方形）的一个角，他不能由此推出另外三个角，就不再往下教他（新知识）了。
"You can't stop the future, you can't rewind the past, the only way to learn the secret is to press play."