「無氈無扇，神仙難變」

(pos:語句)(sim:巧婦難為無米炊)
<explanation>
yue:條件不足，技術再好都做唔到
eng:cannot make bricks without straw; cannot make a silk purse of a sow's ear; without sufficient conditions, one cannot do something even with excellent skills; literally, without a rug or a fan, a fairy cannot do the tricks
<eg>
yue:你霎時間要我畫畫？筆都冇支喎。無氈無扇，神仙都難變啦！ (nei5 saap3 si4 gaan1 jiu3 ngo5 waak6 waa2? bat1 dou1 mou5 zi1 wo3. mou4 zin1 mou4 sin3, san4 sin1 dou1 naan4 bin3 laa1!)
eng:You want me to draw something right now? There isn't even a pen here. Even a fairy couldn't do tricks without proper tools.