句子使用since引导原因状语从句，主句为why not引导的反问句，语气亲切且具有感染力，适合日常励志表达。
Be strict with yourself and tolerant towards others.
How far your heart can reach determines how far you can go. Be a warm person, smile gently, and love lightly. One must gradually mature to see this flashy world more clearly, seeing through the disguised truth and the hidden falsehood. Many things once believed may no longer be held as true. However, one must still believe in beauty, in kindness, and in the fact that the last youth remains in our hands.
The gains and losses, successes and failures, prosperity and desolation of life are nothing but fleeting smoke. What accompanies us for a lifetime, shadowing us and never leaving, is only our state of mind; like breathing, the mood that accompanies your life is the only wealth that cannot be taken away from you. As a writer once said beautifully: "It is not easy to live a lifetime. Sadness is living, and happiness is also living. Since we are all alive, why not live happily?" Indeed, life is like a dream; no matter how long life is, it is only a hundred years.
Human life is like the ocean; only by sailing far across it do we know its grandeur. Human life is like a forest; only by hiking through it do we know its richness. Human life is even more like the sky; only by flying through it do we know its vastness and the freedom of soaring. Experience allows us to understand the true value of life and see the colorful spectrum of life rather than its paleness. Life cannot do without experience, so let us strive to look back on our path with a calm mind, without regret or resentment.
严以责己，宽以待人。
心有多远，你就能走多远。做一个温暖的人，浅浅笑，轻轻爱。人总要慢慢成熟，将这个浮华的世界看得更清楚，看穿伪装的真实，看清隐匿的虚假，很多原本相信的事便不再相信。但是，要去相信，相信美好，相信良善，相信最末的青春还在我们手上。
人生的得与失，成与败，繁华与落寞不过是过眼烟云。而永远陪伴我们一生，如影随形、不离不弃的只有心情；如同呼吸，伴你一生的心情是你唯一不能被剥夺的财富。一位作家说得好：“人，活一辈子不容易，忧伤是活，开心也是活，既然都是活，为什么不开开心地生活呢？”是啊，人生如梦，生命再长，也不过百年。
人的一生就像大海，只有远洋航行，才知道海的壮阔；人的一生就像森林，只有徒步旅行，才知道森林的丰富；人的一生更像天空，只有飞过，才知道天的广大和畅翔的自由。经历，让我们明白生命真正的价值所在，看到人生的五彩斑斓而不是苍白。人生离不开经历，那就让我们争取回首来路，心境坦然无怨无悔吧！
"If life deceives you, do not be melancholy."
"Live optimistically with a smile; it is not that big a deal."
"Rise from adversity, keep your enthusiasm and smile."
"Though life has its storms, no rain lasts forever; every gloomy mood can be dried into a moving smile."
"Do not let the failure to reach a certain goal dampen your happiness."