That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.
A thought is an idea in transit.
Necessity is the mother of invention.
I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.
The real solution lies in a world in which charity will have become unnecessary.
Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.
Better know nothing than half-know many things.
The highest activity a human being can attain is learning for understanding, because to understand is to be free.
Many much-learned men have no intelligence.
In mathematics you don't understand things. You just get used to them.
Imagination is more important than knowledge.
The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.
To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.
If you can't explain it simply, you don't understand it well enough.
Knowing others is wisdom, knowing yourself is Enlightenment.
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.
Education is a system of imposed ignorance.
Reading is to the mind what exercise is to the body.
A child miseducated is a child lost.
I am so clever that sometimes I don't understand a single word of what I am saying.
Reading without reflecting is like eating without digesting.