He was a pro in that film.
I started saying one of his quotes while playing FPS video games...
"your training is nothing! It is the will to act!"
I started getting more brave (usually I'm too brave and end up killing myself...I'm impatient) but also tactical and received a lot more kills.
He was a great psychologically original tutor/villain in Batman Begins.
I've never seen an actor like him.
He brings a very unpredictable character on screen.
"Sometimes you gotta run before you can walk." - Tony Stark, Iron Man.