句子插入了非限制性定语从句 when done with full effort，丰富了主句 Some matters are complete 的内涵，强调了努力的价值。
Life is not inherently bitter; it is the excess of desires that causes suffering. The mind is not naturally weary; it is the inability to let go that brings exhaustion. Desire is like sand in one's hands: the tighter you grasp it, the more it slips away. Gains and losses are relative. When you gain, you may be losing; when you lose, you might actually be gaining. True detachment means abandoning illusions to gain enlightenment, letting go of the trivial to gain the significant, discarding falsehoods to preserve truth, and shedding the superficial to embrace reality. View things with a broader perspective and let things happen naturally.
Sometimes, past events must be allowed to pass. Only then do we create space for new things to enter our lives. Solitude and being alone are two different things. One can be alone without being lonely, especially if one enjoys the tranquility and the peace of solitude. Conversely, two people can be deeply lonely if they are unable to communicate, fail to appreciate each other's worth, or cannot share love and care.
Life is not always as expected, and not everything goes smoothly. Careers are not forever brilliant, journeys are filled with obstacles, and relationships have their sweet and bitter moments. Do not demand perfection from others or yourself. When the road is blocked, learn to turn; when knots cannot be untied, learn to forget; when tasks are difficult, learn to let go; when connections fade, choose to remain open.
Some memories, when recalled, bring warmth; some beauty, when seen, becomes scenery; some pain, when released, brings relief; some conflicts, when viewed from the right angle, bring comfort; Some matters, when done with full effort, are complete; some mistakes, when forgiven, bring peace of mind; some disturbances, when taken lightly, bring no sorrow; some disputes, when ignored, no longer burden the heart; some trivialities, when let go of, bring lightness.
生活本不苦，苦的往往是欲望过多；心本无累，累的往往是放不下的太多。欲望就像手中的沙子，握得越紧，流失得越多。得与失是相对的，得到时，或许正在失去；失去时，也许恰是拥有。所谓舍得，是要舍迷入悟、舍小获大、舍妄存真、舍虚取实。凡事看开些，一切随缘就好。
有时候，过去的事情必须让它过去。只有这样，我们才有空间让新的事物进入生命。一个人并不等于寂寞，如果你乐在其中，享受宁静和独处，一个人也可以很充实。反过来，两个人也可能很寂寞，当你们无法沟通，无法欣赏彼此存在的价值，无法分享爱与关怀时。
人生并非总如意，生活并非都称心，事业并非永辉煌，前行总会遇沟坎，情缘总有苦辣甜。不要求别人，不苛求自己：路不通时，学会拐弯；结不开时，学会忘记；事难做时，学会放下；缘渐远时，选择随意。
有些回忆，记起便是温暖；有些美丽，入目就是风景；有些伤痛，放下就是释然；有些纠结，想开就能舒坦；有些事情，尽心就是完满；有些错误，原谅就是心宽；有些纷扰，看淡就无悲颜；有些是非，不计较就不会负载心间；有些琐碎，释然就是轻松。
"Life is challenging; only through striving and struggle can it be meaningful."
"To save time traveling home for lunch, he brought meals to school every morning in a thermos"
"Humans are born with hands to work and feet to walk."
"I always believe that hard work brings rewards."
"The fastest pace is not leaping, but continuing; the slowest pace is not small steps, but hesitation."