Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.

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Once you stop learning, you start dying

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The world will not be destroyed by those who do evil, but by those who watch them without doing anything.

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Most people see what is, and never see what can be.

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Failure is success in progress

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In the middle of every difficulty lies opportunity.

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Logic can take you from point A to point B. Imagination can take you wherever you want

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Nothing causes more consternation in a group of hypocrits than one honest man.

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A ship is always safe at the shore - but that is NOT what it is built for.

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Let every man judge according to his own standards, by what he has himself read, not by what others tell him.

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