The measure of intelligence is the ability to change.
Albert Einstein
We can learn to see each other and see ourselves in each other and recognize that human beings are more alike than we are unalike.
Maya Angelou
Learning is the only thing the mind never exhausts, never fears, and never regrets.
Leonardo da Vinci
The brain is like a muscle. When it is in use, we feel very good. Understanding is joyous.
Carl Sagan
I do not wish women to have power over men; but over themselves.
Mary Wollstonecraft
Judge a man by his questions rather than his answers.
Voltaire
Ignorance is the softest pillow on which a man can rest his head.
Michel de Montaigne
The limits of the possible can only be defined by going beyond them into the impossible.
Arthur C. Clarke
Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something and that this thing must be attained.
Marie Curie
Do the best you can until you know better. Then when you know better, do better.
The mind, once stretched by a new idea, never returns to its original dimensions.
Ralph Waldo Emerson
If I have ever made any valuable discoveries, it has been owing more to patient attention than to any other talent.
Isaac Newton
You can't use up creativity. The more you use, the more you have.
You can only become truly accomplished at something you love.
We can only see a short distance ahead, but we can see plenty there that needs to be done.
Alan Turing
The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.
The secret of success is constancy of purpose.
Benjamin Disraeli
Reflect upon your present blessings, of which every man has plenty; not on your past misfortunes, of which all men have some.
Charles Dickens