该句使用系表结构直接表达主观判断。
Boredom is the greatest agony of life, as it speaks to the emptiness of existence.
Life is short, so one must seize the moment. Human knowledge is extremely limited, and the unknown is as deep and inscrutable as the ocean.
Life is a book; its cover design, preface, table of contents, content, afterword, and even its layout and editing, should all be completed by oneself.
The joy of life lies in fulfillment. Both learning and practice can bring such enrichment.
Life is like rowing upstream; only through persistent struggle can one reach the upper reaches.
Life is like a fleeting blossom; rather than burying the seeds of regret, it is better to nurture the sprouts of passion.
Life should never be complacent, just as rivers flow forward endlessly.
Life is like a competition, where the most important part is participation.
What is precious about life is not achievement, but the continuous struggle and pursuit of self.
"Dan" is the counterpart to "Li". If the "degree" between them is not mastered, friendship will perish. The friendship of a gentleman is distant in distance but close in spirit; the friendship of a petty person is close in physical proximity but separated by hearts. A gentleman says what needs to be said and does what ought to be done; a petty person says what the friend wants to hear and does what they themselves want to do.
无聊是人生最大的痛苦，因为它诉说着人生的空虚。
人生苦短，须及时把握现在，因人类的知识范围极其有限，对于未知的事情，就如同海水般深不可测。
人生是一部书，封面设计、序言、目录、内容、后记，甚至版面设计、编辑，都应该由自己完成。
人生的乐趣在于充实。学习，实践俱能使自己得到充实。
人生似逆水行舟，只有坚持不懈地搏击，才能抵达上游。
人生宛如昙花一现，与其埋藏悔恨的种子，不如培育热爱的新芽。
人生不能有满足，正如江河永远向前奔流。
人生如一场竞技比赛，最重要的是参与。
人生可贵的不是成就，而是不断地自我奋斗和追求。
"淡"是与"醴"相对而言，如果把握不准两者之间的"度"，就会扼杀彼此的友情。君子之交，虽相隔甚远，却心灵相通，紧密地贴在一起；小人之交，常常胶在一起，密切无间，但心灵上互相隔膜，难以沟通。君子之交，对朋友说该说的话，做该做的事；小人之间，说朋友想听的话，做自己想做的事。