"I’ve spent 20 years in the corporate world, but reading David's journey—from selling floor cleaner in Ipoh to signing million-dollar contracts—really hit home. Most sales books are full of fluff, but this is raw and real. His *'Stupid Methods'* are actually the most brilliant because they focus on the one thing we often forget in the age of AI: genuine human sincerity. A must-read for any leader who wants to build a team that actually lasts."

读完这本书，我感触最深的是大卫提到的 *'Street Sincerity + Company System'*. 很多业务员只懂技巧，却不懂得建立信任。David taught me that sales is a business about humanity, time, and choices. 书里的实战经验，比如从 100 个客户扩展到 400 个客户的逻辑，真的非常实用. This is not just a book about selling; it's about survival and winning the right way. 强烈推荐给每一位在销售一线拼搏的朋友！

Buku ini luar biasa! David Goh benar-benar mengerti tantangan sales di dunia nyata. Saya sangat suka bagian tentang *'Reciprocity Principle'*—memberi nilai dulu sebelum bicara harga. It's so relatable! David reminds us that 'balance is not weakness; it is the only victory'. Sangat relevan untuk entrepreneur di Indonesia yang ingin scale up business tanpa kehilangan jati diri. If you want to master sales, this book is a must-read!