Today's preoccupation with physical theories of everything takes a wrong turn from the purpose of science - to question all things relentlessly. Modern physics has become like Swift's kingdom of Laputa flying absurdly on an island above the earth and indifferent to what is beneath.

I've always felt that what I have going for me is not my imagination because everyone has an imagination. What I have is a relentlessly controlled imagination. What looks like wild invention is actually quite carefully calculated.

Blind faith no matter how passionately expressed will not suffice. Science for its part will test relentlessly every assumption about the human condition.

Indians mock their corrupt politicians relentlessly but they regard their honest politicians with silent suspicion. The first thing they do when they hear of a supposedly 'clean' politician is to grin. It is a cliche that honest politicians in India tend to have dishonest sons who collect money from people seeking an audience with Dad.

Good business leaders create a vision articulate the vision passionately own the vision and relentlessly drive it to completion.