One of Albert Einstein's greatest insights was realizing that time is relative. It speeds up or slows down depending on how fast one thing is moving relative to something else. How much does it ...

he also became one of the most quoted figures of all time in all areas: imagination, life skills, science and creativity. Read on to discover some of Albert Einstein’s most beloved quotes.

Albert Einstein ... the result is that time behaves differently for someone moving than for someone standing still. It cemented Einstein's belief that time and space are relative and simultaneity ...