Julius Caesar William Shakespeare

Question: William Shakespeare or Julius Caesar?
Who said this quote?!?!?! I read somewhere it was Julius Caesar, i heard William Shakespeare... Lol. Please?
“There is a tide in the affairs of men, Which taken at the flood, leads on to fortune. Omitted, all the voyage of their life is bound in shallows and in miseries. On such a full sea are we now afloat. And we must take the current when it serves, or lose our ventures.”
Ahhhh! That makes sense. THANK YOU PEOPLE SO MUCHHHH! ;] I'm sorry if i come off stupid to you guys... I'm kinda dense... But thanks for giving me some knowledge!!XD
Answer: William Shakespeare. It's from the play Julius Caesar
Act IV, Scene III, Line 216
Fairbanks Daily News-Miner - The voice of Interior Alaska since 1903
Brad Weis gestures while reading from Act II, Scene II of William Shakespeare's "Julius Caesar" during the 11th Annual Bard-A-Thon Thursday afternoon, January 21, 2010 at the Fairbanks Shakespeare Theatre's Empress Theatre on 3rd Avenue downtown.
15 JULIUS CAESAR BBC SHAKESPEARE COLLECTION chunk 1