"To feel today what one felt yesterday isn't to feel - it's to remember today what was felt yesterday, to be today's living corpse of what yesterday was lived and lost"

"The best preparation for good work tomorrow is to do good work today"

"Tomorrow is the most important thing in life. Comes into us at midnight very clean. It's perfect when it arrives and it puts itself in our hands. It hopes we've learned something from yesterday"

"I like to use the hard times in the past to motivate me today"

"In thinking about nanotechnology today, what's most important is understanding where it leads, what nanotechnology will look like after we reach the assembler breakthrough"

"Today I bent the truth to be kind, and I have no regret, for I am far surer of what is kind than I am of what is true"

"The science of today is the technology of tomorrow"

"Each day is the scholar of yesterday"

"Work as though you would live forever, and live as though you would die today. Go another mile!"

"I am tomorrow, or some future day, what I establish today. I am today what I established yesterday or some previous day"

"I saw a report yesterday. There's so much oil, all over the world, they don't know where to dump it. And Saudi Arabia says, 'Oh, there's too much oil.' They - they came back yesterday. Did you see the report? They want to reduce oil production. Do you think they're our friends? They're not our friends"