

“The secret to getting ahead is getting started.”
Commonly attributed to Twain in computer contexts and post-2000 inspirational books — the first sentence has also been attributed to Agatha Christie and Sally Berger.
Misattributed
“The secret to getting ahead is getting started.”
“The secret of getting ahead is getting started.”
“That was how dishonesty and betrayal started, not in big lies but in small secrets.”
Source: The Bonesetter's Daughter
“you don't have to be great to get started, but you have to get started to be great.”
Variant: you don't have to be great to get started but you have to to get started to be great
“My advice is to get involved and get started.”
From his autobiography http://nobelprize.org/nobel_prizes/physics/laureates/2000/kilby-autobio.html. The Nobel Prizes 2000, Editor Tore Frängsmyr, Nobel Foundation, Stockholm, 2001
Context: I've reached the age where young people frequently ask for my advice. All I can really say is that electronics is a fascinating field that I continue to find fulfilling. The field is still growing rapidly, and the opportunities that are ahead are at least as great as they were when I graduated from college. My advice is to get involved and get started.
“The secret of writing comedy is to know where it's all going, then get ahead of it.”
Henry Allen (January 4, 1979) "Life in the Laugh Factory", The Washington Post, p. B1.
Source: Eat That Frog!: 21 Great Ways to Stop Procrastinating and Get More Done in Less Time
“To end the humiliation was a start, but to end poverty is a bigger task.”
1960s, Address to Local 815, Teamsters and the Allied Trades Council (1967)
Context: Today Negroes want above all else to abolish poverty in their lives and in the lives of the white poor. This is the heart of their program. To end the humiliation was a start, but to end poverty is a bigger task. It is natural for Negroes to turn to the labor movement because it was the first and pioneer anti-poverty program….