Excellence is an art won by training and habituation. We do not act rightly because we have virtue or excellence, but we rather have those because we have acted rightly. We are what we repeatedly do. Excellence, then, is not an act but a habit.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny.
Science is often seen as the enemy of faith, and yet both science and religion seek to understand the truth.
Moral excellence comes about as a result of habit. We become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts.
The ultimate value of life depends upon awareness and the power of contemplation rather than upon mere survival.
Excellence is never an accident. It is always the result of high intention, sincere effort, and intelligent execution; it represents the wise choice of many alternatives - choice, not chance, determines your destiny.
Some people would claim that things like love, joy, and beauty belong to a different category from science and can't be explained by physical laws.
One of the basic rules of the universe is that nothing is perfect. Perfection simply doesn't exist... Without imperfection, neither you nor I would exist.
We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.
My advice to other disabled people would be, concentrate on things your disability doesn't prevent you doing well, and don't regret the things it interferes with.
We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet.
Most sets of values would give a universe that, although it might be very beautiful, would contain no one able to wonder at that beauty.