Patience is a virtue, and I'm learning patience. It's a tough lesson.
When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
Any sufficiently advanced technology is indistinguishable from magic.
Necessity is the mother of invention.
Liberty without Learning is always in peril and Learning without Liberty is always in vain.
Common sense is the collection of prejudices acquired by age eighteen.
Science is a way of thinking much more than it is a body of knowledge.
Knowing others is wisdom, knowing yourself is Enlightenment.
A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.
If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
The real solution lies in a world in which charity will have become unnecessary.
All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.
The schools ain't what they used to be and never was.
I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.
Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
Opinion is the medium between knowledge and ignorance.
Don't learn to do, but learn in doing.
The direction in which education starts a man will determine his future in life
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.