I am a very positive thinker, and I think that is what helps me the most in difficult moments.
Other Roger Federer quotes:
There is no way around the hard work. Embrace it.
You have to believe in the long term plan you have but you need the short term goals to motivate and inspire you.
I respect everybody but fear nobody.
I always believe if you're stuck in a hole and maybe things aren't going well you will come out stronger. Everything in life is this way.
When you're good at something, make that everything.
A man who wins, is a man who thinks he can.