The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
Knowing is not enough; we must apply. Willing is not enough; we must do.
There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.
I cannot teach anybody anything. I can only make them think
The fullness of knowledge only comes through the awareness of ignorance.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
There is no authority who decides what is a good idea.
You can never be overdressed or overeducated.
Make it a rule never to give a child a book you would not read yourself.
The man who does not read good books has no advantage over the man who can't read them.
A witty saying proves nothing.
To every action there is always an equal and opposite or contrary, reaction
Many much-learned men have no intelligence.
I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.
Real knowledge is to know the extent of one's ignorance.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
The deepest sin against the human mind is to believe things without evidence.
The books that the world calls immoral are books that show the world its own shame.
Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.