Mental processes exist because they serve a purpose.

If you can't fly then run， if you can't run then walk， if you can't walk then crawl， but whatever you do you have to keep moving forward.

You can’t put a limit on anything. The more you dream, the farther you get.

The development of attention in childhood is a foundation for self-regulation and academic achievement.

【释义】凯根打破童年决定论：快乐童年未必护航成年，而经历过黑暗的孩子反而可能锻造韧性。