Apathy can be overcome by enthusiasm, 

and enthusiasm can only be aroused by two things: 

first, an ideal, with takes the imagination by storm, 

and second, a definite intelligible plan for carrying that ideal into practice.

The human race's prospects of survival were considerably better 

when we were defenceless against tigers 

than they are today 

when we have become defenceless against ourselves.

To be able to fill leisure intelligently is the last product of civilisation.

The equation of religion with belief is rather recent.

It is a paradoxical but profoundly true and important principle of life 

that the most likely way
to reach a goal 

is to be aiming 

not at that goal itself 

but at some more ambitious goal beyond it.

The supreme accomplishment is to blur the line between work and play.