I can’t say I’m successful .I have only done something that matters. If you want to be successful, first, it’s important to stay curious and want to figure out the unknown. Another key to success is persistence when we try to tackle the unknown, we are bound to suffer failures and setbacks However, if we persevere, we will succeed sometimes. For example, my research team is working on a cancer drug. The project has been going on for 21 years. The drug is still under development but we are very close to success. Persistence is key to the success of this project.