A man is ethical only when life, as such, is sacre...

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.

There is a fountain of youth: it is your mind, your talents, the creativity you bring to your life and the lives of people you love. When you learn to tap this source, you will truly have defeated age.

Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen.

Probably the happiest period in life most frequently is in middle age, when the eager passions of youth are cooled, and the infirmities of age not yet begun as we see that the shadows, which are at morning and evening so large, almost entirely disappear at midday.

As I grow older, I pay less attention to what men say. I just watch what they do.

Men of age object too much, consult too long, adventure too little, repent too soon, and seldom drive business home to the full period, but content themselves with a mediocrity of success.

Men are like wine - some turn to vinegar, but the best improve with age.

I suppose when they reach a certain age some men are afraid to grow up. It seems the older the men get, the younger their new wives get.

Why should society feel responsible only for the education of children, and not for the education of all adults of every age?

The enemy of society is middle class and the enemy of life is middle age.

We have entered an age in which education is not just a luxury permitting some men an advantage over others. It has become a necessity without which a person is defenseless in this complex, industrialized society. We have truly entered the century of the educated man.

The class distinctions proper to a democratic society are not those of rank or money, still less, as is apt to happen when these are abandoned, of race, but of age.

Age is an issue of mind over matter. If you don't mind, it doesn't matter.

Common sense is the collection of prejudices acquired by age eighteen.

The older I grow the more I distrust the familiar doctrine that age brings wisdom.

Wisdom doesn't necessarily come with age. Sometimes age just shows up all by itself.

The best way to find yourself is to lose yourself in the service of others.

You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself. That is something you have charge of.

The past cannot be changed. The future is yet in your power.