don't drive faster than your guardian angel can fly

saying2

1. •
   Drive your vehicle at a safe speed.

   • Don't drive faster than your guardian angel can fly is one of my favourite proverbs directed at drivers. — 2009
2. •
   (figurative) Do not rush impulsively into things or get carried away by your emotions.

   • The instructor's concluding trope, “Don't drive faster than your guardian angel can fly,” conveyed the sentiment that agents should not let their emotions get the better of them. — 2016