Edward de Bono Quote

Humour is by far the most significant activity of the human brain.


Daily Mail (London, January 29, 1990).


Humour is by far the most significant activity of the human brain.

Humour is by far the most significant activity of the human brain.

Humour is by far the most significant activity of the human brain.

Humour is by far the most significant activity of the human brain.