"我基本上是个乐观主义者。这种性格是天生的还是后天培养的，我说不清楚。乐观的一部分是要保持头朝向太阳，脚向前走。"

Simplified Meaning:

Being optimistic means always looking for the bright side, even when things are tough. Imagine walking down a street on a rainy day, holding a small umbrella. It would be easy to focus on the cold and wet conditions, getting frustrated at every puddle and drizzly moment. However, an optimistic person would keep looking up, noticing any breaks in the clouds and finding joy in the scenery, knowing that the rain will eventually pass. In life, we all face difficult situations, much like that rainy day. But by keeping our head up, focusing on positive thoughts, and continuing to move forward step-by-step, we can weather those storms. This approach helps us keep hope alive and maintain progress, even if it feels slow. For instance, if you're trying to learn a new skill and keep failing, staying optimistic means celebrating small successes and believing you'll get better with practice. This mindset encourages persistence and resilience, leading to a healthier and happier life.