A proverb a day to brighten the day!374a. Der Träger weiß, wo der Schuh drückt.
374b. The wearer knows where the shoe pinches.
One who had never got hurt in his life, won't realize how much it hurts 'to get hurt'.
There is nothing like personal experience to make people realize what the others are going through.
Der = The
Träger = wearer
weiß = knows
wo = where
der = the
Schuh = shoe
drückt = pinches.