Physics is like sex: sure, it may give some practical results, but that's not why we do it.
Books are as useful to a stupid person as a mirror is useful to a blind person.
The ability to observe without evaluating is the highest form of intelligence.
I am indebted to my father for living, but to my teacher for living well.
An investment in knowledge pays the best interest.
Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Common sense is the collection of prejudices acquired by age eighteen.
A cynic is a man who knows the price of everything, and the value of nothing.
The more I read, the more I acquire, the more certain I am that I know nothing.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
If I have seen further it is by standing on the shoulders of Giants.
If you can't explain it simply, you don't understand it well enough.
Learning never exhausts the mind.
Reading without reflecting is like eating without digesting.
Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.
Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
Investigate, educate and organize the country must progress, productive works and industries are the main avenues at present next to education for the advancement of the country
To every action there is always an equal and opposite or contrary, reaction
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.