Nobody needs a smile so much as the one who has none to give. So get used to smiling heart-warming smiles and you will spread sunshine in a sometimes dreary world.

As it turns out what looks like science sometimes is not.

Math is sometimes called the science of patterns.

The central task of science is to arrive stage by stage at a clearer comprehension of nature but this does not at all mean as it is sometimes claimed to mean a search for mastery over nature.

It is sometimes important for science to know how to forget the things she is surest of.

I also think we need to maintain distinctions - the doctrine of creation is different from a scientific cosmology and we should resist the temptation which sometimes scientists give in to to try to assimilate the concepts of theology to the concepts of science.

We can lick gravity but sometimes the paperwork is overwhelming.

It's not a struggle but sometimes when you're gone for a month or two you start to miss your friends. I love acting so much that it fills that gap of being sad about not being able to see my friends.

I recently turned down a film that I didn't want my kids to see. Priorities shift. Sometimes I'm sad about that but not enough to do anything about it.

When you're happy you don't always have to be laughing and when you're sad you don't have to be crying sometimes it's the opposite. You laugh when you're the most upset.