“Time interval is a strange and contradictory matter in the mind.  It would be reasonable to suppose that a routine time or an eventless time would seem interminable.  It should be so, but it is not.  It is the dull eventless times that have no duration whatever.  A time splashed with interest, wounded with tragedy, crevassed with joy–that’s the time that seems long in the memory.  And this is right when you think about it.  Eventlessness has no posts to drape duration on.  From nothing to nothing is no time at all.”  –John Steinbeck, East of Eden

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“Imagination is more important than knowledge.  For knowledge is limited to all we now know and understand, while imagination embraces the entire world, and all there ever will be to know and understand.”  Albert Einstein

“It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better.  The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly…who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory or defeat.”  Theodore Roosevelt, “The Man in the Arena,” 1910.

“I also think it is important to be bold and to tackle difficult problems, especially those that appear to be messy and unstructured.  One should not be afraid to try new things, such as moving from one field to another or working at the boundaries of different disciplines, for it is at the borders that some of the most interesting problems reside.” Eric Kandel