A fourth sneak preview of "Stand By Me" from the fifth season of Grey's Anatomy. This episode's original air date is March 19, 2009.
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A third sneak peek at "Stand By Me," from Season Five of Grey's Anatomy (original air date March 19, 2009).
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Another sneak peak of "Stand By Me," originally airing March 19, 2009 on ABC.
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The Canadian promo for "Invasion." It's slightly different, and very dramatic!
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Patrick Dempsey talks Grey's Anatomy and his character, Derek Shepherd.
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Katherine Heigl speaks about returning to Grey's Anatomy and T.R. Knight NOT returning to the show. Cool stuff.
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Izzie and Cristina discuss the former's options in an emotional sneak preview of "Stand By Me," the March 19, 2009 episode of Grey's Anatomy.
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Meredith and Derek in an emotional, upsetting scene from "I Will Follow You Into the Dark," from the fifth season of Grey's Anatomy.
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Grey's Anatomy Quotes

When we say things like "people don't change" it drives scientist crazy because change is literally the only constant in all of science. Energy. Matter. It's always changing, morphing, merging, growing, dying. It's the way people try not to change that's unnatural. The way we cling to what things were instead of letting things be what they are. The way we cling to old memories instead of forming new ones. The way we insist on believing despite every scientific indication that anything in this lifetime is permanent. Change is constant. How we experience change that's up to us. It can feel like death or it can feel like a second chance at life. If we open our fingers, loosen our grips, go with it, it can feel like pure adrenaline. Like at any moment we can have another chance at life. Like at any moment, we can be born all over again.

Meredith

Callie: Did anyone ever think you two were a couple?
Meredith: No, because we screw boys like whores on tequila.
Cristina: Then we either try to marry them or drown ourselves.
Callie: Huh.