only when you smile at it will it smile back at you
只有当你对它微笑，它才会回以微笑。
该句使用条件结构表达行为与结果之间的对应关系。
"Seek joy daily and let go of worries."
"Nothing can drive us to total failure as long as we maintain a positive mindset."
"Do not complain about your life not being perfect."
"Letting go of life's unpleasantries maintains a healthy mindset."
"The greatest charm of a person lies in having a positive mindset."