If you can’t explain it simply, you don’t understand it well enough.
Albert Einstein 

Sometimes you just have to engage and improvise.
Napoleon 

I never took drugs because I am drugs.
Salvador Dalí

I can resist everything except temptation.
Oscar Wilde

Good people keep walking whatever happens. They do not speak vain words and are the same in good fortune and bad.

Be a Columbus to whole new continents within you, opening new channels, not of trade, but of thought.

A man who dares to waste one hour of life has not discovered the value of life.
Charles Darwin

The man who trades freedom for security usually ends up with neither.
Benjamin Franklin

I have never let my schooling interfere with my education.
Mark Twain

It is a miracle that curiosity survives formal education.
Albert Einstein

Sometimes the view of change if distorted by a change in oneself. The room which seemed so large is shrunk, the mountain has become a hill.
John Steinbeck 

My face has not ignored the passage of time, but recorded it with scars, lines, furrows, and erosions.
John Steinbeck

Youth, you son of a bitch, where did you go?
Charles Bukowski

Chance favours the prepared mind.
Louis Pasteur

Classical education teaches you to despise the wealth it prevents you from earning.
Lord Taverne