As the area of light expands, so does the perimeter of darkness.

Gravitation cannot be held responsible for people falling in love. How on earth can you explain in terms of chemistry and physics so important a biological phenomenon as first love? Put your hand on a stove for a minute and it seems like an hour. Sit with that special girl for an hour and it seems like a minute. That's relativity.

There is nothing divine about morality, it is a purely human affair.

Live with purpose. Don't let people or things around you get you down.

Pure logical thinking cannot yield us any knowledge of the empirical world. All knowledge of reality starts from experience and ends in it.

Even the scholars in various lands have been acting as if their brains had been amputated.

Imagination without knowledge may create beautiful things, knowledge without imagination can create only perfect ones.