成功的收获始于倾听前人的智慧。
A successful harvest begins with listening to the wisdom of those who came before us.
无知是一切邪恶的根源和树干。
Sometimes we get sad about things and we don’t like to tell other people that we are sad about them. We like to keep it a secret. Or sometimes, we are sad but we really don’t know why we are sad, so we say we aren’t sad but we really are.