Both tears and sweat are salty, but they render a different result. Tears will get you sympathy, sweat will get you change.
Source: In The Speaker's Electronic Reference Collection, AApex Software, 1994.
-- Jesse Jackson, (Oct 8 1941-____), US civil rights leader, minister, politician; He was the first black man to make a serious bid for the U.S. presidency in the Democratic Party's nomination races in 1983-84 and 1987-88.