The difficult is what takes a little time; the impossible is what takes a little longer.

The history of the human race is a continual struggle from darkness into light. It is, therefore, to no purpose to discuss the use of knowledge; man wants to know, and when he ceases to do so, is no longer a man.

Love is life's snow. It falls deepest and softest into the gashes left by the fight - whiter and purer than snow itself.

The difficult is what takes a little time; the impossible is what takes a little longer.

I demolish my bridges behind me - then there is no choice but forward.

Happiness is the struggle towards a summit and, when it is attained, it is happiness to glimpse new summits on the other side.

Never stop because you are afraid - you are never so likely to be wrong.