句子以不定式短语作主语，后半部分使用'which'引导非限制性定语从句补充说明前句含义，结构完整且逻辑清晰。
True happiness is internal and can only be found within the human soul. — Bremer
Duke Shou of the Zhou Dynasty spat out his food to welcome worthy men, and the hearts of the realm were drawn to him. — Cao Cao
Time is like water in a sponge; if you are willing to squeeze it out, you will always find some. — Lu Xun
Let the past be a mirror for the future. — Strategies of the Warring States
To save time is to make a limited life more effective, which is equivalent to extending one's lifespan. — Lu Xun
Humans must rely on ideals to live; without ideals, one loses the strength to live. — Yang Shuo
In life, all the beautiful things we encounter are measured in seconds. — Gorky
A thousand teachings aim to teach truth, and a thousand studies aim to cultivate genuine human beings. — Tao Xingzhi
When we read a good book for the first time, it feels as if we have found a friend; when we read it again, it feels like meeting an old friend once more. — Voltaire
Do you love life? Then do not waste time, for time is the material of which life is made. — Franklin
We look up to high mountains in awe and admire noble conduct as we walk the path. — The Book of Songs
Sincerity, if truly devoted, can move even metal and stone. — Book of the Later Han
真正的快乐是内在的，它只有在人类的心灵里才能发现。——布雷默
周公吐哺，天下归心。——曹操
时间就像海绵里的水，只要愿挤，总还是有的。——鲁迅
前事不忘，后事之师。——《战国策》
节省时间，也就是使一个有限的生命更加有效，而也即等于延长了人的生命。——鲁迅
人是要靠理想才能生活的，没有理想，就会失去生活的力量。——杨朔
在生活中，我们碰到的一切美好的东西，都是以秒计算。——高尔基
千教万教教人求真，千学万学学做真人。——陶行知
当我们第一遍读一本好书的时候，我们仿佛觉得找到了一个朋友；当我们再一次读这本书的时候，仿佛又和老朋友重逢。——伏尔泰
你热爱生命吗？那么别浪费时间，因为时间是组成生命的材料。——富兰克林
高山仰止，景行行止。——《诗经》
精诚所至，金石为开。——《后汉书》