The highest activity a human being can attain is learning for understanding because to understand is to be free.

Much learning does not teach understanding.

My four years in the Marine Corps left me with an indelible understanding of the value of leadership skills.

Leadership should be born out of the understanding of the needs of those who would be affected by it.

The trouble with the Labour Party leadership and the trade union leadership they're quite willing to applaud millions on the streets of the Philippines or in Eastern Europe without understanding the need to also produce millions of people on the streets of Britain.

The secret to understanding me is I'm not trying to be anybody other than who I actually am. People want candid refreshing leadership. And I've always tried to go with solutions. You know I've always tried to say here's how we get our economy growing here's why we get our debt under control. That's what Mitt Romney is offering.

And indeed this theme has been at the centre of all my research since 1943 both because of its intrinsic fascination and my conviction that a knowledge of sequences could contribute much to our understanding of living matter.

Take the decision in early March to arrest Muqtada al-Sadr. It was made apparently without knowledge or understanding of the nature of his movement or how widespread it is.

When time and space and change converge we find place. We arrive in Place when we resolve things. Place is peace of mind and understanding. Place is knowledge of self. Place is resolution.

The frontiers of knowledge in the various fields of our subject are expanding at such a rate that work as hard as one can one finds oneself further and further away from an understanding of the whole.