My favourite definition of 'Intellectual' is: 'A person whose education surpasses their intelligence.'

The intelligence of the planet is constant, and the population is growing.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

It has yet to be proven that intelligence has any survival value.

The intelligent minority of this world will mark 1 January 2001 as the real beginning of the 21st century and the Third Millennium.