A mind once stretched by a new idea can never regain its original shape.
Oliver Wendall Holmes
No one ever steps in the same river twice, for it’s not the same river and they’re not the same person.
Heraclitus of Ephesus
It is impossible for anyone to learn what they think they already know.
In the beginner’s mind there are many possibilities, but in the expert’s there are few.
We cannot become what we need to be by remaining what we are.
Experience is not what happens to you. It is what you do with what happens to you.
Yesterday’s the past, tomorrow’s the future, but today is a gift. That’s why it’s called the present.
Do not follow where the path may lead. Go instead where there is no path and leave a trail.
Anyone who has never made a mistake has never tried anything new.
The person who views the world at fifty the same as they did at twenty has wasted thirty years of their life.
Life is what happens to you while you’re busy making other plans.
Sometimes the majority only means that all the fools are on the same side.
Always tell the truth. That way you don’t have to remember what you said.