ITS NOT A TIME OF LIFE:

 Youth is not a time of life it is a state of mind. It is not a matter of red cheeks, red lips and supple knees. It is a temper of the will; a quality of the imagination; a vigor of the emotions; it is a freshness of the deep springs of life. Youth means a tempermental predominance of courage over timidity, of the appetite for adventure over a life of ease. This often exists in a man of fifty, more than in a boy of twenty. Nobody grows old by merely living a number of years; people grow old by deserting their ideals. Years may wrinkle the skin, but to give up enthusiasm wrinkles the soul. Worry, doubt, self-distrust, fear and despairthese are the long, long years that bow the head and turn the growing spirit back to dust. Whether seventy or sixteen, there is in every beings heart a love of wonder; the sweet amazement at the stars and starlike things and thoughts; the undaunted challenge of events, the unfailing childlike appetite for what comes next, and the joy in the game of life. You are as young as your faith, as old as your doubt; as young as your self-confidence, as old as your fear, as young as your hope, as old as your despair. In the central place of your heart there is a wireless station. So long as it receives messages of beauty, hope, cheer, grandeur, courage, and power from the earth, from men and from the Infiniteso long are you young. When the wires are all down and the central places of your heart are covered with the snows of pessimism and the ice of cynicism, then are you grown old, indeed!   

"YOUTH QUOTES"

As long as you can still be dissapointed, you are still young.

No man knows he is young while he is young.

It is better to be a young June-bug than an old bird of paradise.

Young men want to be faithful, and are not; old men want to be faithless, and cannot .

Young men soon give and soon forget affronts; Old age is slow in both.

I’m not young enough to know everything.

Youth is easily deceived, because it is quick to hope.

If youth is the season of hope, it is often so only in the sense that our elders are hopeful about us.

No wise man ever wished to be younger.

The foundation of every state is the education of its youth.

The secret of eternal youth is arrested development.

Youth is to all the glad reason of life; but often only by what it hopes, not by what it attains, or what it escapes.

Youth cannot know how age thinks and feels. But old men are guilty if they forget what it was to be young.

Don’t waste your youth growing up.

Age limits

Age limits:

The age in which a person is considered a "youth", and thus eligible for special treatment under the law and throughout society varies around the world.

• "Youth... those persons between the ages of 15 and 24 years." - United Nations General Assembly.
• "...youth ... comprises persons between the age of 15 and 24. It is used by ... the World Bank" - World Bank.
• The Commonwealth Youth Programme works with "young people (aged 15-29)."
• "A person... under 21 years of age." - National Highway Traffic Safety Administration.
• "People between the ages of 14 and 21." - Wilson School District.
• "Youth; an individual from 13 through 19 years of age." - Alternative Homes for Youth.
• "Youth is defined as any member of society between the ages of 15 and 34" - The Danish Youth Council.

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EXPLANATION:

Youth is the time of life between childhood and adulthood (maturity). Definitions of the specific age range that constitutes youth vary. An individual's actual maturity may not correspond to their chronological age, as immature individuals could exist at all ages.
Around the world, the terms "youth", "adolescent", "teenager", "kid", and "young person" are interchanged, often meaning the same thing, occasionally differentiated. Youth generally refers to a time of life that is neither childhood nor adulthood, but rather somewhere in-between. Youth also identifies a particular mindset of attitude, as in "He is very youthful". The term youth is also related to being young.
"This world demands the qualities of youth: not a time of life but a state of mind, a temper of the will, a quality of imagination, a predominance of courage over timidity, of the appetite for adventure over the life of ease." - Robert Kennedy.

MEANING OF YOUTH:

1. Young persons, collectively.
2.  A young person; especially, a young man.
3. The quality or state of being young; youthfulness; juvenility.
4. The part of life that succeeds to childhood; the period of existence preceding maturity or age; the whole early part of life, from childhood, or, sometimes, from infancy, to manhood.