If you have one reason for doing something and I give you a second reason for doing the same thing, it seems only logical that two reasons are better than one and you're more likely to do it.
اگر يك دليل براي انجام كاري داشته باشيد و من دليل دومي براي انجام آن كار به شما ارائه دهم منطقي به نظر مي رسد كه دو دليل بهتر از يك دليل هستند و به احتمال زياد آن كار را انجام خواهيد داد.