"The first professor you meet in life is your mother; the second is hardship, and the last is death."
- Matshona Dhliwayo
"In my youth I had three teachers: friends, enemies, and books. In my adulthood I had three professors: God, nature, and life."
"There is no smarter professor than life, and no wiser sage than experience."
"To be knowledgeable, sit before scholars; to be wise, sit before life."