"The idol of today pushes the hero of yesterday out of our recollection; and will, in turn, be supplanted by his successor of tomorrow"

"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"

"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"

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

"The science of today is the technology of tomorrow"

"The politician's promises of yesterday are the taxes of today"

"What is not started today is never finished tomorrow"

"Each day is the scholar of yesterday"

"An economist is an expert who will know tomorrow why the things he predicted yesterday didn't happen today"