Hagar

“I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived. I did not wish to live what was not life, living is so dear; nor did I wish to practice resignation, unless it was quite necessary. I wanted to live deep and suck out all the marrow of life, to live so sturdily and Spartan-like as to put to rout all that was not life, to cut a broad swath and shave close, to drive life into a corner, and reduce it to its lowest terms, and, if it proved to be mean, why then to get the whole and genuine meanness of it, and publish its meanness to the world; or if it were sublime, to know it by experience, and be able to give a true account of it in my next excursion.”
― Henry David Thoreau

“The fool doth think he is wise, but the wise man knows himself to be a fool.”
― William Shakespeare, As You Like It

“These violent delights have violent ends
And in their triumph die, like fire and powder,
Which as they kiss consume. The sweetest honey
Is loathsome in his own deliciousness
And in the taste confounds the appetite.
Therefore love moderately; long love doth so;
Too swift arrives as tardy as too slow.”
― William Shakespeare, Romeo and Juliet

“Love looks not with the eyes, but with the mind; And therefore is wing'd Cupid painted blind. Nor hath love's mind of any judgment taste; Wings and no eyes figure unheedy haste: And therefore is love said to be a child, Because in choice he is so oft beguil'd.”
― William Shakespeare, A Midsummer Night’s Dream