If one is master of one thing and understands one thing well, one has at the same time, insight into and understanding of many things.

If boyhood and youth are but vanity, must it not be our ambition to become men?

How can I be useful, of what service can I be? There is something inside me, what can it be?

There is no blue without yellow and without orange.

For me, often, there's such a cloud of melancholia about knowing I'm going to have to leave my daughter on her own. I don't know what age that is going to be, thank God. It just doubles me up in grief.

Aircraft do not crash of themselves. They come to grief because men are foolish, or vain, or lazy, or irresolute or reckless. One crash in a thousand may be unavoidable because God wills it so - not more than that.

I love that mentality: 'Hey - you know what? - you may beat us, but by God we're going to beat the hell out of you.' I'd rather go down that way, with people that will go down swinging than, 'OK, let's accept losing.'

Getting ahead in a difficult profession requires avid faith in yourself. That is why some people with mediocre talent, but with great inner drive, go so much further than people with vastly superior talent.