John Fitzgerald Kennedy was a great man and so do his quotes.

I wanted to write down the ones I love the most, to share and to come back to it later.

Liberty without learning is always in peril; learning without liberty is always in vain.

The time to repair the roof is when the sun is shining.

There are risks and costs to a program of action. But they are far less than the long-range risks and costs of comfortable inaction.

And so, my fellow americans: ask not what your country can do for you – ask what you can do for your country. My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man.

The ignorance of one voter in a democracy impairs the security of all.

Mankind must put an end to war or war will put an end to mankind.