Education is not the learning of facts but the training of the mind to think.
A Ship is always safe at shore but that is not what it’s built for.
Blind belief in authority is the greatest enemy of truth.
Great spirits have always encountered violent opposition from mediocre minds.
Imagination is everything. It is the preview of life’s coming attractions.
Logic will get you from A to B. Imagination will take you everywhere.
The person who reads too much and uses his brain too little will fall into lazy habits of thinking.
I have no special talents, I am just passionately curious.
If you want to live a happy, tie it to a goal, not to people or objects.
If you can’t explain it simply, you don’t understand it well enough.