“Knowing trees, I understand the meaning of patience. Knowing grass, I can appreciate persistence.”— Hal Borland
“If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.”— Jeff Bezos
“To make a great dream come true, the first requirement is a great capacity to dream; the second is persistence.”— Cesar Chavez
“Persistence is the twin sister of excellence. One is a matter of quality; the other, a matter of time.”— Robert Half
“Don't worry about people stealing your ideas. If your ideas are any good, you'll have to ram them down people's throats.”— Howard Aiken
“Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all.”— Dale Carnegie
“Be a nuisance where it counts. Do your part to inform and stimulate the public to join your action. Be depressed, discouraged, and disappointed at failure and the disheartening effects of ignorance, greed, corruption and bad politics — but never give up.”— Marjory Stoneman Douglas