like: 无风不起浪 → →
无风不起浪 [wu2 feng1 bu4 qi3 lang4] ☊ 
lit. without wind there cannot be waves (idiom); there must be a reason ☊ 无风不起浪 [wu2 feng1 bu4 qi3 lang4] ☊ lit. without wind there cannot be waves (idiom); there must be a reason ☊