The greatest happiness in life is not来自于金钱，地位， success, or any other material things. It is来自于爱和被爱。

Love and被爱 are the most important things in life. They provide us with the greatest sense of fulfillment, comfort, and happiness. When we love someone, we feel a sense of warmth and security. We feel like we are truly loved by the person we love. And when we are loved by someone, we feel a sense of love and warmth towards them too.

Love and被爱 are not just for romantic relationships. They are also important for our mental health and well-being. When we are loved and accepted by our family, friends, or even by society, we feel a sense of belonging and purpose. This sense of belonging and purpose helps us to feel a sense of purpose in life, and it provides us with the greatest sense of happiness.

In English, the phrase “the greatest happiness in life is来自于爱和被爱” can be translated to “the greatest happiness comes from love and被爱”. This phrase emphasizes the importance of love and被爱 in life, and it shows that the greatest happiness comes from within, not from external sources.

In conclusion, love and被爱 are the most important things in life. They provide us with the greatest sense of fulfillment, comfort, and happiness. And if we are able to love and be loved by someone, we will feel a sense of happiness that cannot be described. So, let us love and be loved by everyone, and let us make love and被爱 the most important things in our lives.