Talk by a Physics Doctor.

In front of nature, we are all equal. We're at the same starting point. It makes no difference that I'm a doctor, and you're a student.

If, in 20 years' time, you read the things you write at this time, you may just laugh at yourself. But, the thing that matters is that, at this time, you've gone through critical think and you are pretty sure about your conclusion. The invaluable thing is actually the satisfaction you derive.