"La ciencia no es nada más que percepción"

“Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt.”

“I like to use the hard times of the past to motivate me today.”

“Whenever you are asked if you can do a job, tell 'em, 'Certainly I can!' Then get busy and...”

“No great mind has ever existed without a touch of madness.”

“Faith is taking the first step even when you don’t see the whole staircase.”

“Wars are not won by fighting battles; wars are won by choosing battles”

“What you’re thinking is what you’re becoming.”

“If you know the enemy and know yourself, you need not fear the result of a hundred battles...”

“There's nothing I despise more than people trying to be something they're not”

“Life is too short, or too long, for me to allow myself the luxury of living it so badly.”

“Your mind must be stronger than your feelings”

“YOU decide what your limits are, and YOU decide your level of success. You are responsible...”