money talks, (and) bullshit walks

Money is the most effective means of persuasion and motivation, while empty talk achieves nothing. The phrase was perhaps most famously used by politician Michael "Ozzie" Myers, who was recorded saying it (while accepting a monetary bribe from undercover FBI agents) during the Abscam scandal in 1979. If you want us to help you out, here's some advice—money talks, bullshit walks! Trust me, it doesn't matter how enticing your idea sounds. If you don't have the funds to pay for people's talent, no one is going to come on board. Money talks, and bullshit walks.