You have to have a darkness...for the dawn to come.
A journey of a thousand miles begins with a single step.
If you're not failing every now and again, it's a sign you're not doing anything very innovative.
My candle burns at both ends; it will not last the night; but ah, my foes, and oh, my friends - it gives a lovely light!
Edna St. Vincent Millay
If I have seen further, it is by standing on the shoulders of giants.
There cannot be a crisis next week. My schedule is already full.
I disapprove of what you say, but will defend to the death your right to say it.
True knowledge exists in knowing that you know nothing.
The wise learn many things from their enemies.
What is a cynic? A man who knows the price of everything and the value of nothing.