"The difference between men and boys is..."

"The difference between men and boys is the price of their toys." - Anonymous

"A university professor set an examination question..."

“A university professor set an examination question in which he asked what is the difference between ignorance and apathy. The professor had to give an A+to a student who answered: 'I don't know and I don't care.'“  - Richard Pratt

“The only difference between a tax man and a taxidermist is ..."

“The only difference between a tax man and a taxidermist is that the taxidermist leaves the skin.” - Mark Twain

“If you think you are too small to make a difference..."

"If you think you are too small to make a difference, try sleeping with a mosquito." - Dalai Lama XIV