@Zou Kai

"I got five medals. I can tell my children how great I was when I become older. Thanks for your support to the Chinese gymnastics team. Chen Yibing and He Kexin, tomorrow it's your turn to win gold."

Chinese gymnast Zou Kai on winning the men's floor exercise

@Lin Dan

"The game is over. I should have had a sound sleep, but I had a sleepless night. I am still in the game mood. All fans, I made it, I really did!"

Chinese star badminton player Lin Dan on defending the men's singles title

@Gymnast Lu Bo

"Overbearing! Humans can't prevent Lin Dan from grabbing the title! The first Chinese to defend the Olympic singles championship! In this Games, one more Chinese has created history!!! Incomparable! Lin Dan! Awesome!"

Chinese gymnast Lu Bo on Lin Dan's victory

@rioferdy5

"Wow, Usain Bolt.....out of this world type athlete!the 100 meters final is the best sport to watch in the Olympics...."

Manchester United player Rio Ferdinand on Bolt winning the men's 100m

@MariaSharapova

"This last week has been a whirlwind of unforgettable memories. From the Opening Ceremony to leaving with this pretty piece of silver. I will remember it forever!!"

Russian tennis player and flag bearer Maria Sharapova on winning silver in the women's singles

@Fu Haifeng

"Now I want to pee, I should prepare for the doping test. Thank you, everyone! Good night!"

Chinese badminton player Fu Haifeng on winning the men's doubles

@SanyaRichiRoss

"I have dreamt of this moment for a very long time but nothing compares to this feeling! Never give up your dreams!!! God is good"

US sprinter Sanya Richards Ross on her win in the women's 400m

@usainbolt

"Respect bossy..hope u get well soon.. You started this Jamaican take over @officialasafa:"

Jamaican 100m dash winner Usain Bolt comforts his compatriot Asafa Powell

@vika7

"and gold is my favorite color! yeaaaaaaaaa"

Belarusian tennis player Victoria Azarenka on her win in the mixed doubles with Max Mirnyi

@RyanSeacrest

"How the Australians beat the cold in londonroasting marshmallows on the Olympic flame."

US host Ryan Seacrest on London's cold weather

@JHarden13

"Easy win for me! RT @Kevinlove: Kobe and @jharden13 setting up for the 100M final"

US basketball player James Harden poses with Kobe Bryant at the starting line of the 100m dash at the London Bowl

@MarioBalotelli

"If Usain Bolt was Italian, his name would have been "Usain Boltelli. #100mFinal"

Manchester City's striker Mario Balotelli appreciates Usain Bolt's record-smashing win in the 100m

@OscarPistorius

"I woke up this morning overwhelmed by the 1000's of messages of well wishes. Thank You for making this 1 of the Greatest moments of my life!"

South African double-amputee sprinter Oscar Pistorius on the fans' support after he competed in the 400m semifinal Monday.