Reusable rockets promise much easier testing because you should usually get them back, and you can debug as you go rather than having to get everything perfect the first time.

Whether solid rockets are more or less likely to fail than liquid-fuel rockets is debatable. More serious, though, is that when they do fail, it's usually violent and spectacular.

Usually, terrible things that are done with the excuse that progress requires them are not really progress at all, but just terrible things.

I don't usually talk about the social work I do because I don't do it for publicity. If I can bring a smile to the face of a few children in this one lifetime, I'd be happy.

When people ask me, 'Why don't you drink?' I usually smile and say 'Because I'm not good at it.'

The last time I saw Ted Kennedy was a generation after my first meeting, at the Senate subway below the Capitol on Obama's Inauguration Day. He was his usual gregarious and gracious self - with beaming smile and booming voice wishing my husband and me good luck with our pregnancy and expressing his excitement about the new president.

Usually, if you smile at them and show some interest in the toy, they will give it to you. That's a straight up Democrat move!

The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?

Usually, girls weren't encouraged to go to college and major in math and science. My high school calculus teacher, Ms. Paz Jensen, made math appealing and motivated me to continue studying it in college.

Blitzscaling is what you do when you need to grow really, really quickly. It's the science and art of rapidly building out a company to serve a large and usually global market, with the goal of becoming the first mover at scale. This is high-impact entrepreneurship.

Usually, I'm only sad when something sad happens. I am not a melancholic person. I like to live very much in the present. If I was an animal, I'd be a little cat. They like to live life.

The state of being in love is so inherently preposterous. It usually lends itself to romantic comedy. I think we've all been there.

In a romantic comedy, it's usually a good idea to have people who can't stand the fact that they are attracted to each other.

I think there are certain tenets set in place for all different types on genres. For thrillers, women usually die first. I can't say exactly why, and it's kind of a bummer... But I also can't explain why the wallflower girl in the romantic comedy always gets the guy in the end. That's just the way those movies go.

Romantic comedies are usually about when love works.

I think I usually play the woman that, after the person tries to go for some extraordinary feat of romantic accomplishment, they happily wind up with me.

Usually comedy is only available to us ladies in the romantic comedy. That's why I hate romantic comedies.

In mainstream romantic comedies, I'm usually tearing my hair out. It's just a devastatingly difficult genre for me.

The vampire was a complete change from the usual romantic characters I was playing, but it was a success.

Usually, in romantic comedies, you end up sacrificing a great deal of the complexity - you know, just two attractive people and a good soundtrack.

In general, I usually don't really go by or live my life by a clock, and outside of touring, I don't really ask anyone else to. It's not out of lack of respect for anyone or intentional.

I was silent as a child, and silenced as a young woman; I am taking my lumps and bumps for being a big mouth, now, but usually from those whose opinion I don't respect.

I think that religion is incredibly cruel, and I think that my biggest problem with being vegetarian, usually, is other vegetarians.

I call religion a natural authority, but it has usually been conceived as a supernatural authority.