To every action there is always an equal and opposite or contrary, reaction
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
Necessity is the mother of invention.
Knowledge becomes evil if the aim be not virtuous.
The whole of science is nothing more than a refinement of everyday thinking.
The task of a writer is not to solve the problem but to state the problem correctly.
The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.
The schools ain't what they used to be and never was.
The highest activity a human being can attain is learning for understanding, because to understand is to be free.
The fullness of knowledge only comes through the awareness of ignorance.
Imagination is more important than knowledge.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
I cannot teach anybody anything. I can only make them think
Industrialize or perish.
I am a part of everything that I have read.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
The man who is fond of books is usually a man of lofty thought, and elevated opinions.
Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.
The progressive development of man is vitally dependent on invention.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
Know what you are talking about.