Sincerity is always subject to proof.
Interpretation
Sincerity is not just a claim; it must be demonstrated through actions.
John F. Kennedy's quote emphasizes that true sincerity is not merely verbal; it requires evidence and actions that substantiate one's words. This highlights the importance of authenticity and accountability in our interactions, suggesting that individuals must back their statements with genuine behavior to be considered sincere.
In practice
During a job interview, you might reference this quote to highlight the importance of being genuine in your qualifications and experience.
The great battleground for the defense and expansion of freedom today is the whole southern half of the globe... the lands of the rising peoples. Their revolution is the greatest in human history. They seek an end to injustice, tyranny and exploitation. More than an end, they seek a beginning.
I had always enjoyed the title of Commander-in-Chief until I was informed ... that the only forces that cannot be transferred from Washington without my express permission are the members of the Marine Corps Band. Those are the only forces I have. I want it announced that we propose to hold the White House against all odds at least for some time to come.
I am talking about genuine peace, the kind of peace that makes life on earth worth living, the kind that enables men and nations to grow and to hope and to build a better life for their children - not merely peace for Americans but peace for all men and women - not merely peace in our time but peace for all time.
I just received the following wire from my generous Daddy; Dear Jack, Don't buy a single vote more than is necessary. I'll be damned if I'm going to pay for a landslide.
Tolerance implies no lack of commitment to one's own beliefs. Rather it condemns the oppression or persecution of others.
Mankind must put an end to war before war puts an end to mankind.
I hope I'm worthy in my dying. I hope I can maintain myself - that I wouldn't become pathetic and needy, and the worst part of myself come out in adversity. But I'm not afraid of it. It'd be such a silly thing to do! To ruin the life you have by fearing its ending.
Sleep lingers all our lifetime about our eyes, as night hovers all day in the boughs of the fir-tree.
It has always seemed to me extreme presumptuousness on the part of those who want to make human ability the measure of what nature can and knows how to do, since, when one comes down to it, there is not one effect in nature, no matter how small, that even the most speculative minds can fully understand.
I was not, I was, I am not, I care not. (Non fui, fui, non sum, non curo)
The problem to be faced is: how to combine loyalty to one's own tradition with reverence for different traditions.
The poet Melvin B. Tolson once said "A civilization is judged only in its decline." That made sense to me. I would imagine the same is true for poets and tennis players.
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