Leonardo da Vinci on education

Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigor of the mind.

Simplicity is the ultimate sophistication.

Anyone who invokes authors in discussion is not using his intelligence but his memory.

Live as if you were to die tomorrow. Learn as if you were to live forever.

Mahatma Gandhi1869–1948

• Life & Death

It is the mark of an educated mind to be able to entertain a thought without accepting it.

Aristotle384–322 BC

• Ideas

He who learns but does not think, is lost! He who thinks but does not learn is in great danger.

Confucius551–479 BC

• Thinking