Der er stor forskel på at vide og forstå; de kan vide en masse om noget uden virkelig at forstå det.
Det er let at sammensætte en filosofi. Den behøver jo ikke fungere.
Jeg interesserer mig meget for fremtiden, for det er der, jeg skal tilbringe resten af mit liv.
Verden hader forandring, dog er det det eneste, der har bragt fremskridt.
It is easy to build a philosophy--it doesn't have to run.
The world hates change, yet it is the only thing that has brought progress.
There is a great difference between knowing and understanding: you can know a lot about something and not really understand it.
We have a lot of people revolutionizing the world because they've never had to present a working model.
We should all be concerned about the future because we will have to spend the rest of our lives there.
Where there is an open mind there will always be a frontier.