Steve Jobs: "How to Live Before You Die" (2005)

Considering the YouTube video of Steve Jobs' 2005 Stanford commencement speech has 24 million views (not counting the 10 million+ additional views from duplicate uploads), it's likely that you've seen this one already. In the speech, Jobs plays on two themes: connecting the dots (anecdote: how taking a calligraphy class helped inspire the design of the Mac) and love & loss (anecdote: how getting fired from Apple helped inspire his greatest innovations). Perhaps the most memorable part his speech comes at the end, when he quotes the (now-famous) lines from the final issue of his favorite publication, The Whole Earth Catalog: