When people start asking you to do the same thing over and over again, that's when you know you're way too close to something that you don't want to be near.
After all, science is essentially international, and it is only through lack of the historical sense that national qualities have been attributed to it.
My specialty is detached malevolence.
Courage is being scared to death... and saddling up anyway.
Could be worse . . . I could be Sting.
When it is not in our power to determine what is true, we ought to follow what is most probable.
Words have no power to impress the mind without the exquisite horror of their reality.
Be less curious about people and more curious about ideas.
I am only one, but still I am one. I cannot do everything, but still I can do something; and because I cannot do everything, I will not refuse to do something that I can do.
What is to give light must endure burning.
It is a good rule in life never to apologize. The right sort of people do not want apologies, and the wrong sort take a mean advantage of them.
Go on, get out. Last words are for fools who haven't said enough.
The thing I lose patience with the most is the clock. Its hands move too fast
Tell me thy company, and I shall tell thee what thou art.
When we are no longer able to change a situation - we are challenged to change ourselves.
When you get to a certain age, there is no coming back.
No snowflake in an avalanche ever feels responsible.
A lie never lives to be old.
It's sad when someone you know becomes someone you knew.
Patriotism is the last refuge of a scoundrel.
I just want to retire before I go senile because if I don't retire before I go senile, then I'll do more damage than good at that point.