The thing about happiness is that you only know you had it when it's gone.
关于幸福,你只有在失去它的时候才知道你曾经拥有过。
Everyone you meet is fighting a battle you know nothing about. Be kind. Always.
深度学习是一种机器学习形式,它使计算机能够从经验中学习,并通过概念层次来理解世界。