"It is the mark of an educated mind to be able to entertain a thought without accepting it." Aristotle
"A goal without a plan is just a wish." Antoine de Saint Exupery
“A clever person solves a problem; a wise person avoids it.” Albert Einstein
“The trouble with most folks ain't so much their ignorance as knowing so many things that ain’t so.” Josh Billings (aka Henry Wheeler Shaw)
“The intensity of the conviction that a hypothesis is true has no bearing on whether it is true or not.” P.B. Medawar
“Treasure your exceptions." Earl Green
“A man of true science uses but few hard words, and those only when none other will answer his purposes; whereas the smatterer in science thinks that by mouthing hard words he proves that he understands hard things.” Herman Melville
“If there is no struggle there is no progress.” Frederick Douglass
“Research is to see what everybody else has seen, and to think what nobody else has thought.” Albert Szent-Gyorgyi
“Everybody is ignorant, only on different subjects.” Will Rogers
“Creativity is so delicate a flower that praise tends to make it bloom, while discouragement often nips it in the bud.” Alex F. Osborn
“Do not take life too seriously; you will never get out of it alive.” Elbert Hubbard
"Reflect on you present blessings, of which every man has many; not on your past misfortunes, of which all men have some". Charles Dickens
“The uncreative mind can spot wrong answers, but it takes a creative mind to spot wrong questions.” Antony Jay
“A pat on the back is only a few vertebrae removed from a kick in the pants, but is miles ahead in results.” Ella Wheeler Wilcox
“It is not the strongest of the species that survive, nor the most intelligent, but the ones that respond to change.” Charles Darwin
"The limits of tyrants are prescribed by the endurance of those whom they oppress.” Frederick Douglass