one small step for man, one giant leap for mankind

A phrase typically said in reference to a breakthrough or advancement of some kind. Astronaut Neil Armstrong famously said the phrase in 1969 when he became the first person to set foot on the moon. I think the self-driving car will be one small step for man, one giant leap for mankind. When we find a cure for this illness, it will be one small step for man, one giant leap for mankind.