This weekend we celebrated my grandad's 90th birthday. 

Can you even imagine what it is like to live for 90 years? He was born in 1920, shortly after World War I ended and lived to experience prohibition, women being allowed to vote for the first time, the invention of the television, economic prosperity, the Great Depression, the Hindenburg, World War II, the Cold War, JFK's assassination, the invention of the computer, the Exxon Valdese oil spill, the internet, the Rwandan genocide, 17 presidents …

As we were celebrating his 90 years of life, I was thinking about how so many things change over time. Doesn't is seem like the iPhone has become such a common part of life? He lived for 97 years before the iPhone came out. He can still remember having to go outside, catch a chicken, and wring its neck in order to have dinner. He grew up in a completely different time. 

But you know what hasn't changed? People. People are still the same. We still want to love and be loved. We still want to do something with our lives that makes a difference. 

So here's to today … and the next 90 years.