John F. Kerry

Greatness isn't about bragging. It's about doing. It's about never being satisfied. It's about testing the limits of what we can achieve together.

Remember always what Nelson Mandela said: 'All the hardest jobs seem impossible until they are done.'

You're about to embark on careers that will take many of you to companies not yet founded, using devices not yet developed, based on ideas not yet conceived. That is how fast things are moving.