Dr. Harrison Wells is the man behind Central City’s S.T.A.R. Labs and the particle accelerator accident that grants Barry Allen his superhuman speed.

He now serves as a mentor to Barry, but is also keeping secrets from everyone on his team. Wells is not what he seems and has knowledge of the future. What is his true purpose and why does he keep a journal on Barry's progress?

Dr. Harrison Wells Quotes

None of us can stop, Barry. Fortunately, Felicity knows somebody who can. I think you better call back Oliver Queen. We're gonna need The Arrow's help.

Harrison

Harrison: Felicity, I like to surround my team with known quantities. That is because I find the unknown to be toxic. Dangerous. Arrow is unknown.
Felicity: I can assure you, Dr. Wells, that he's not dangerous. To us.

The Flash Quotes

One mystery I cannot figure out is why some people come into our lives and why some people go. Others become a part of you. Some friendships feel like they'll last forever and others end far too soon. Not every friendship is meant to last forever. What does last forever is the pain when that person is gone.

Barry

Barry: I love you, Iris.
Iris: Oh. I love you, too.
Barry: When we were kids I loved you before I even know what the word love meant and then my mom died and I had to go live with the girl I had a crush on. Look. There were so many times I wanted to tell you; Jr. Prom, when I went away to college, when I came back from college, nights that we stayed up talking, all the birthdays, all the Christmases, but I, I never did. I kept it in. After I lost my mom and my dad, I was afraid that if you didn't feel the same way, I would lose you, too. That's the irony. I was so scared of losing you that I did. I know I've had our whole lives to tell you this and you're with Eddie now and I know that and I know my timing couldn't be any worse, but I just... I couldn't lie to you anymore. I'm sorry.