Replying to Please help me find this video

This might be kind of vague, but it's a youtube video with an audio clip of some famous old wise man talking about why it's important to do what you love to do for a living instead of doing something that makes money, and how that's one of the keys to happiness, otherwise you'll end up doing something you hate to make money to keep on living doing that thing you hate to do. The visual aspect is just a slideshow of random earth photos and stuff, but the audio is the important part. Thanks!