Just keep challenging yourself. I think that's a great thing.

I never imagined I could make it to the top of Mount Everest at age 80. This is the world's best feeling, although I'm totally exhausted. Even at 80, I can still do quite well.

If you wish strongly, have courage and endurance, then you can get to the summit of your dream.

After retiring, I was a little bored with nothing to do and got fat. I thought, if a 60-year-old metabolic fat man, after five years, can get to Mount Everest, that would be very exciting.

I want to ski down Mount Cho Oyu in the Himalayas when I am 85, descending from a height of 8,201 meters.

The desert lay in wait, more infinite than God, no less remote.

You will learn more when you teach someone else. The secret to obtaining more knowledge is teaching more people as possible and available!

He turns not back who is bound to a star.

It's a little intimidating to walk into a studio and know that you're going to sing a duet with Barbra Streisand.

We cannot hope to achieve full employment and sustain it until we have mastered inflation.

I'm incredibly impressed by people who organize to achieve a goal, and believe that they can make a difference and then go ahead and do just that. I think it's incredible.

Mysticism is an eclectic mixture of various forms of self-discovery that's primarily experimental.

Nothing made you feel so useless as another person's grief.

Truth is on a curve whose asymptote our spirit follows eternally.

LSU fans have descended upon Dallas and reminded us of this truth: when it comes to partying, they're the pros and we're all amateurs.