The ambition of the greatest men of our generation has been to wipe every tear from every eye. That may be beyond us, but so long as there are tears and suffering, so long our work will not be over.

Even the rich are hungry for love, for being cared for, for being wanted, for having someone to call their own.

Science is global. Einstein's equation, E=mc2, has to reach everywhere. Science is a beautiful gift to humanity, we should not distort it. Science does not differentiate between multiple races.

An eye for an eye only ends up making the whole world blind.

Healthy discontent is the prelude to progress.

You're dead if you aim only for kids. Adults are only kids grown up, anyway.

An empty stomach is not a good political adviser.

A dream doesn't become reality through magic; it takes sweat, determination and hard work. 

You can't just let nature run wild.

Teaching is a very noble profession that shapes the character, caliban, and future of an individual. If the people remember me as a good teacher, that will be the biggest honour for me.

The biggest disease today is not leprosy or tuberculosis, but rather the feeling of being unwanted.

If you are poor, you are not likely to live long.