school of hard knocks

Etymology
1870.

Noun

 * 1)  The source of an education consisting of real-world experiences, especially adverse experiences.

Translations

 * Chinese:
 * Mandarin: 人生學校
 * Finnish:, kantapään kautta oppiminen
 * French: école de vie,
 * German: Schule des Lebens
 * Kazakh: өмір мектебі
 * Polish: szkoła życia
 * Portuguese: escola da vida
 * Russian: шко́ла жи́зни
 * Spanish: gramática parda
 * Swedish: