The writer is delegated to declare and to celebrate man's proven capacity for greatness of heart and spirit—for gallantry in defeat, for courage, compassion and love. In the endless war against weakness and despair, these are the bright rally flags of hope and of emulation.

Reinforcement is the central factor in the acquisition of new behavior patterns.

创新不仅仅是创造新产品，更是重新思考如何利用资源来建设可持续的未来。