I have to remind myself that some birds aren't meant to be caged. Their feathers are just too bright. And when they fly away, the part of you that knows it was a sin to lock them up DOES rejoice. Still, the place you live in is that much more drab and empty that they're gone. I guess I just miss my friend.

You can't change the past, but you can shape the future.

Every discovery builds on the work of those who came before us.

释义：善于运用自己的才能，才能实现财富的积累。这句话强调才能与财富的关系，提醒人们要充分发挥自身优势。

Life is about growth and change. When you stop growing, you stop living.