A couple of my all time favs..
What may be done at any time will be done at no time. ~ Scottish Proverb
I have learned to be content in whatever circumstances I am in. ~ The Bible, Phillipians 4:11
It is amazing what you can accomplish if you do not care who gets the credit. ~ Harry Truman
If I have ever made any valuable discoveries, it has been owing more to patient attention, than to any other talent. ~ Isaac Newton
There is no calamity greater than lavish desires.There is no greater guilt than discontentment. And there is no greater disaster than greed. ~ Lao-tzu
This is one that I heard not long ago...
Falling down is how we grow. Staying down is how we die. ~ Brian Vaszily
"The oranges are dry; the apples are mealy; and the papayas... I don't know what's going on with the papayas!"