You can only find truth with logic if you have already found truth without it. (Gilbert Keith Chesterton)

There’s a limit to how many times you can read how great you are and what an inspiration you are, but I’m not there yet. (Randy Pausch)

The fundamental cause of trouble in the world is that the stupid are cocksure while the intelligent are full of doubt. (Bertrand Russell)

Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away. (Antoine de Saint Exupery)

We didn’t lose the game; we just ran out of time. (Vince Lombardi)

A mathematician is a device for turning coffee into theorems. (Paul Erdos)

If you are going through hell, keep going. (Sir Winston Churchill)

The power of accurate observation is frequently called cynicism by those who don’t have it. (George Bernard Shaw)