Globalisation means many other countries are asserting themselves and trying to take over leadership. Please don't ask Americans to let others assume the leadership of human exploration. We can do wonderful science on the Moon, and wonderful commercial things. Then we can pack up and move on to Mars.

In rating ease of description as very important, we are essentially asserting a belief in quantitative knowledge - a belief that most of the key questions in our world sooner or later demand answers to 'by how much?' rather than merely to 'in which direction?'

One of the most painful things in the Western States and Territories is the extinction of childhood. I have never seen any children - only debased imitations of men and women, cankered by greed and selfishness, and asserting and gaining complete independence of their parents at ten years old.

We shall never be understood or respected by the English until we carry our individuality to extremes, and by asserting our independence, become of sufficient consequence in their eyes to merit a closer study than they have hitherto accorded us.

Strategic autonomy is not secured by merely asserting one's independence: it is secured by creating mutually beneficial interdependencies.

I always showed myself in the face of day, asserting the liberty and independence of my country, while some others, like owls, courted concealment and were too much afraid of losing their roosts to leave them for such a cause.

To me, what socialism means is to guarantee a basic level of dignity. It's asserting the value of saying that the America we want and the America that we are proud of is one in which all children can access a dignified education. It's one in which no person is too poor to have the medicines they need to live.

Make big plans; aim high in hope and work, remembering that a noble, logical diagram once recorded will not die, but long after we are gone be a living thing, asserting itself with ever-growing insistence.

In the process of burning out these confusions, we discover enlightenment. If the process were otherwise, the awakened state of mind would be a product dependent upon cause and effect and therefore liable to dissolution. Anything which is created must, sooner or later, die. If enlightenment were created in such a way, there would always be a possibility of ego reasserting itself, causing a return to the confused state. Enlightenment is permanent because we have not produced it; we have merely discovered it.

Should I perchance still feel after my death I would no longer have any doubt but I would most certainly give the lie to anyone asserting before me that I was dead.