infinite delight or joy 与天奋斗，～；与地奋斗，～。It is an immense pleasure to fight heaven and earth (or combat nature,brave the elements)./他每天喝上两口，觉得～。He takes delight in drinking a cup or two everyday.
其乐无穷qí lè wú qiónɡ
其中的乐趣没有穷尽。the joy is boundless, find it a delight, find it a joy