The only limit to our realization of tomorrow is our doubts of today.
理解就是知道什么导致什么。
让儿童参与工作,能增强他们对生活环境的责任感。
The strongest weapon you have is your mind. Train it well.
The future belongs to those who believe in the beauty of their dreams.
绝望最常见的形式不是做你自己。
Persistence is very important. You should not give up unless you are forced to give up.