Note the difference between 'getting ahead' and 'going ahead'. 'Getting ahead' gives the idea of success, the other is usually just about movement.

Yes, it's a very strong motivational quote! Sometimes you have big plans, but you never take the first step to start them, because of the fear maybe... He just remind us to begin as soon as possible what we'd like to do.

I think it is it is like if you want to go someplace, you have to work at it or for it. If you want to do something, you have to do it it. Someone else can't do things for you.

It just means if you want to get ahead you just have to start doing what you you want to get ahead in, without starting your work you can never get ahead. In other words - if want to go ahead you need to start walking, standing at one place will never get you anywhere, you would just be stuck.