句子运用了隐喻，将负面情绪比作 'gloom'（阴霾），将积极态度比作 'sunshine'（阳光），'let your face turn toward' 形象地传达了主动选择乐观的行为。
Kin killing kin is as futile as burning beanstalks to boil beans.
Desire is part of the deluded mind; only when the deluded mind is extinguished can the true nature be revealed.
In business, if a salesperson fails to close a deal, all product knowledge and sales skills become meaningless. Without a sale, there is no business; it is as simple as that.
In this world, what does a salesperson rely on to touch the customer's heart? Some persuade through agile thinking and rigorous logic, while others move people with impassioned and eloquent speeches.
Never lose your drive; success is only a matter of time.
If possible, be like a sunflower: Even when the heart is clouded by gloom, let your face always turn toward the sunshine.
骨肉相残，煮豆燃萁。
情欲意识属于妄心，只有当妄心被彻底消解，真心才会显现。
在业务实践中，如果业务员无法让客户签下单，那么所有的产品知识与销售技巧都将失去意义。不成交，就没有销售，道理如此简单。
在这个世界上，业务员究竟该靠什么去拨动客户的心弦？有人凭借思维敏捷、逻辑周密的雄辩令人折服；有人通过声情并茂、慷慨激昂的陈词来动人心扉。
锐气不可抛，成功终将到来。
如果可能，请做一棵向日葵吧，即便内心阴霾重重，脸庞也永远朝着阳光。