If you have a really good idea, stick to it, but be flexible on how you get there. Be stubborn on your vision but flexible on the details... People who are right a lot change their mind... They have the same data set that they had at the beginning, but they wake up, and they re-analyze things all the time, and they come to a new conclusion, and then they change their mind.

Most folks are as happy as they make up their minds to be.

The eye sees all, but the mind shows us what we want to see.

Let us consider, first, the need for a tough mind, characterized by incisive thinking, realistic appraisal, and decisive judgment. The tough mind is sharp and penetrating, breaking through the crust of legends and myths and sifting the true from the false.

I realized then that if something is at stake, the human mind gets ignited and working capacity gets enhanced manifold.

The infinite library of the Universe is in your mind.