Youth is not a time of life；it is a state of mind.It is not a matter of rosy cheeks, red lips and supple knees.It is a matter of the will, a quality of the imagination, vigor of the emotions；It is the freshness of the deep spring of life.
Youth means a temperamental predominance of courage over timidity, of the appetite for adventure over the love of ease.This often exits in a man of 60，more than a boy of 20.Nobody grows merely by the number of years；we grow old by deserting our ideas.
Years may wrinkle the skin, but to give up enthusiasm wrinkles the soul. Worry, fear, self-distrust1 bows the heart and turns the spirit back to dust.
Whether 60 or 16，there is in every human being's heart the lure of wonders, the unfailing childlike appetite of what’s next and the joy of the game of living.In the center of your heart and my heart there is a wireless station；so long as it receives messages of beauty, hope, cheer, courage and power from men and from infinite, so long as you are young.
When the aerials are down, and your spirit is covered with the snows of cynicism and the ice of pessimism, then you've grown old, even at 20，but as long as your aerials are up, to catch waves of optimism, there’s hope you may die young at 80.
-state [steɪt]n.状态；国家；州；政府 adj.国家的 v.陈述；声明
典型例句
She wept to see him in such a state.
她一见他那种情形便簌然泪下。
最常用法
in a state 处于某一状态
state of health 健康状况
state one's view 陈述观点
联想记忆
statement n.陈述；声明
stated adj.阐明的；定期的；规定的
condition n.条件；情况
declare v.宣布（声明）；申报；声明
express vt.表达；表示
-ease [iːz]n.容易；悠闲；安逸 v.减轻；放松；缓和
典型例句
He is expected to win the game with ease.
预计他在比赛中会轻易获胜。
最常用法
with ease 轻易，毫不费劲
at（one's）ease 安逸，舒适
联想记忆
easy adj.容易的；轻松的；舒适的；安逸的
comfort n.舒适；安逸；安慰；慰藉 vt.安慰；使舒适
difficulty n.困难；争议；麻烦
-exit [ˈeksɪt]n.出口；退场 v.离去；退出
典型例句
He made a quick exit to avoid meeting her.
他迅速离去以避免见到她。
最常用法
at the exit 在出口处
联想记忆
entrance n.入口；进入
-fear [fɪə（r）]n.担心；害怕 v.害怕；担心；恐惧
典型例句
The thought of returning filled him with fear.
一想到还要回去，他心里就害怕。
最常用法
in fear of 害怕
with fear 担心；害怕
联想记忆
fearless adj.无畏的；大胆的；勇敢的
fearful adj.担心的；可怕的
afraid adj.抱歉的；担心的；害怕的
brave adj.勇敢的；英勇的
青春不是年华，而是心境；青春不是桃面，丹唇，柔膝，而是深沉的意志，恢宏的想象，炽热的感情；青春是生命的源泉在不息的涌流。
青春气贯长虹，勇锐盖过怯懦，进取压倒苟安。如此锐气，弱冠后生有之，耳顺之年，则亦多见，年岁有加，并非垂老；理想丢弃，方堕暮年。
岁月悠悠，衰微只及肌肤，热忱抛却，颓唐必至灵魂。忧烦，惶恐，丧失自信，定使心灵扭曲，意气如灰。
无论年届古稀，抑或二八芳龄，心中皆有生命之欢乐，奇迹之诱惑，孩童般天真久盛不衰。人人心中皆深植一片追求，只要你从天上，人间追求美好，希望，欢乐，勇气和力量，你就青春永驻，风华长存。
一旦追求消失，锐气如同冰雪覆盖，玩世不恭，自暴自弃油然而生，即使年方二十，实已老矣。然坚持追求，你就有望在百岁高龄告别尘寰时仍觉年轻。