Who said the following quote?
"Education is the most powerful weapon which you can use to change the world."
Nelson Mandela, the former President of South Africa, said this quote.
Complete the following task based on the instruction and optional input provided.### Instruction:
Who said the following quote?

### Input:
"Education is the most powerful weapon which you can use to change the world."

### Output:
Nelson Mandela, the former President of South Africa, said this quote.