Sometimes we get sad about things and we don’t like to tell other people that we are sad about them.
有时我们会为某些事情感到悲伤，而我们不愿意告诉别人我们为此感到悲伤。
学校必须代表当下的生活——对孩子来说，这种生活与他在家庭、邻里或操场上所进行的生活一样真实和重要。
Sustainability isn't just an option; it's our responsibility to future generations.
思维的功能是指导行动。