Youth is a quality not unlike health: it's found in greater abundance among the young, but we all need access to it.
I shall not grow conservative with age.
When I work with young people, I grab energy from them by the handsful.
The key is to have energy.
The world isn't going backward, if you can just stay young enough to remember what it was really like when you were really young.
I'm young in spirit and have lots of energy.
The anger of lovers renews their love.
Flexibility is youth.
I still have a young attitude.
These are the soul's changes. I don't believe in ageing. I believe in forever altering one's aspect to the sun. Hence my optimism.
Kids are so dynamic; if you're tired and you walk into a roomful of kids, your energy is brought up to their level.
When you have family with you, it gives you extra energy.
Youthfulness is connected to the ability to see things new for the first time. So if your eyes still look at life with wonder, then you will seem young, even though you may not be chronologically young.
How convalescence shrinks a man back to his pristine stature! where is now the space, which he occupied so lately, in his own, in the family's eye?
I'm still constantly thinking of ideas. I don't feel 90. I think I'm about 12.
None are so old as those who have outlived enthusiasm.
It is not possible for civilization to flow backwards while there is youth in the world. Youth may be headstrong, but it will advance it allotted length.
The tiger springs in the new year. Us he devours.
I really do believe that youth comes from how you look at the world.
Someone might come close to dying, and they'll enjoy life much more than everyone else. I came close to the death of my sports career, and I enjoy everything coming my way.
Some days, you wake up with extra energy, that extra juice.
America is not in decline.
Each new generation is a fresh invasion of savages.
I have a very young outlook.
Women are really beautiful in their forties, and men seem to come of age around the period of their second wife.
