Pet Carriers & Travel Products,Pet Carriers Products,Dog Carriers Travel Products,Pet Travel Bag Ningbo Yinzhou Hengxi Winbate Household Product Manufacturer , https://www.nbwinbate.com Matthew Childs, who has 35 years of rock climbing experience, summarizes 9 lessons that climbers must know: 2. Don't hesitate 3. Have a plan 4. Be careful every step 5. Know when to rest 6. Do not fear 7. Try a variety of methods 8. Strength does not equal success 9. Know how to give up