Here are additional observations from my collection of quotations. If you have any to share, please do so.

“Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.” Martin Luther King, Jr.

“The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

“Simplicity is the ultimate sophistication.” Leonardo da Vinci

“Quality is never an accident. It is always the result of intelligent effort.” John Ruskin

“Nobody cares how much you know, until they know how much you care.” Theodore Roosevelt

“In matters of style, swim with the current; in matters of principle, stand like a rock.” Thomas Jefferson

“Insanity: doing the same thing over and over again and expecting different results.” Albert Einstein

“We make a living by what we get, but we make a life by what we give.” Winston Churchill

“It is better to remain silent and thought a fool than to speak and remove all doubt.” Mark Twain

“Everything that we see is a shadow cast by that which we do not see.” Martin Luther King, Jr.

“If you can’t explain an idea to a six-year-old, you really don’t understand it.” Albert Einstein