“Who knows most, doubts most.”

I hold that a man should strive to the uttermost for his life’s set prize.

There are those who believe something, and therefore will tolerate nothing; and on the other hand, those who tolerate everything, because they believe nothing.

I was made and meant to look for you and wait for you and become yours forever.

I trust in nature for the stable laws of beauty and utility. Spring shall plant and autumn garner to the end of time.

Grow old along with me! The best is yet to be, the last of life, for which the first was made. Our times are in his hand who saith, ‘A whole I planned, youth shows but half; Trust God: See all, nor be afraid!

God is the perfect poet, Who in his person acts his own creations.

Must in death your daylight finish? My sun sets to rise again.

Success in marriage is more than finding the right person: it is being the right person.

The curious crime, the fine Felicity and flower of wickedness.

Open my heart, and you will see Graved inside of it ‘Italy.’

Measure your mind’s height by the shade it casts.

Lose who may-I still can say, Those who win heaven, blest are they!

I give the fight up: let there be an end, a privacy, an obscure nook for me. I want to be forgotten even by God.

So, fall asleep love, loved by me for I know love, I am loved by thee.

If all the world is a stage and life is just a play upon it, get me two seats in the stalls.

What a thing friendship is – World without end.

Doctor, you don’t know what it is to doubt everything, even yourself. No, you don’t; you couldn’t with eyebrows like yours.

So many people doubted me. They motivated me every single day, to be, who I am.

Whatever the misery, he could not regain contentment with a world which, once doubted, became absurd.

My job, my whole life, I’ve always had that kind of doubter, people have always doubted me. And I don’t know how I would succeed without it. So I welcome it, and it gives me a challenge, and I will see if I can live up to my challenge.

Dare to believe, and then dare to speak, and you shall have whatsoever you say if you doubt not.

Once doubt begins it spreads rapidly.

I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics, delirium and symptoms of schizophrenia.

Neither look forward where there is doubt nor backward where there is regret.