David Attenborough: 15 of the naturalist's best quotes

Sir David Attenborough has long been a national treasure, best known for his awe-inspiring BBC documentaries such as Life, Planet Earth, and The Blue Planet.

To celebrate the esteemed broadcaster’s 91st birthday, we’ve compiled some of his best quotes, ranging from impassioned speeches on conservation to being a humanist.

“It seems to me that the natural world is the greatest source of excitement; the greatest source of visual beauty, the greatest source of intellectual interest.