“To know and not to act is not yet to know.”

You must do the thing you think you cannot do.

What you're supposed to do when you don't like a thing is change it. If you can't change it, change the way you think about it. Don't complain.

Knowledge is of no value unless you put it into practice.

We can only see a short distance ahead, but we can see plenty there that needs to be done.

Ask not what your country can do for you - ask what you can do for your country.

The philosophers have only interpreted the world, in various ways. The point, however, is to change it.

I do not believe in taking the right decision, I take a decision and make it right.

Once you start working on something, don't be afraid of failure and don't abandon it.