God is a challenge because there is no proof of his existence and therefore the search must continue.
A proof tells us where to concentrate our doubts.
In the twelve months immediately preceding the outbreak; of war, the quantity of spirits, both domestic and imported released for sale in Canada, amounted to over three and a half million proof gallons.
If you love it, and work really hard at it, it will really happen, I believe. I'm living proof.
Anybody can be Pope; the proof of this is that I have become one.
A dislike of death is no proof of the want of religion. The instincts of nature shrink from it, for no creature can like its own dissolution. But though death is not desired, the result of it may be, for dying to the Christian is the way to life eternal.
Is it unreasonable to have proof of citizenship when entering another country?
There is abundant proof that the opening of our ports always tends to raise the price of foreign corn to the price in the English market, and not to sink the price of British corn to the price in the continental market.
From whichever angle one looks at it, the application of racial theories remains a striking proof of the lowered demands of public opinion upon the purity of critical judgment.
The final proof of greatness lies in being able to endure criticism without resentment.
With impressive proof on all sides of magnificent progress, no one can rightly deny the fundamental correctness of our economic system.
I'm very intelligent. I'm capable of doing everything put to me. I've launched a perfume and want my own hotel chain. I'm living proof blondes are not stupid.
A proof of really great art is that it is generally true - it seldom falls into the misapprehensions to which minor art is liable.
The ideas which now pass for brilliant innovations and advances are in fact mere revivals of ancient errors, and a further proof of the dictum that those who are ignorant of the past are condemned to repeat it.
It's nice to establish yourself as an actor first and a singer second. Proof is such a tremendous piece of work, and I'm incredibly lucky to be a part of it. I'm sure that the musicals will happen in the future, though.