1.Pull yourself up by your bootstraps is used by people to say that someone needs to get it together.
The real meaning is: You CANT pull yourself up by your bootstaps.
If you pull on your actual real life bootstraps your feet will not levitate.

Annie Spratt
Its not how it works.
2.Carpe diem, quam minimum credula postero.
3.People should consume 8 glasses of water a day.

Full quote: People should consume 8 glasses of water a day.
Most of this quantity is contained in prepared foods.
Most of what you eat is water.
Drink some water if youre thirsty.
4.Money is the root of all evil.
The actual verse reads: The love ofmoney is a root of all sorts of evil.
Thats the exact opposite meaning of the full quote: A few bad apples spoil the bunch.
6.Machiavelli: It is better to be feared than loved,if you cannot be both.
7.Imitation is the sincerest form of flattery that mediocrity can pay to greatness.
Im sure theres something to be learnt here but Im too stupid to teach it.
8.Curiosity killed the cat… but satisfaction brought it back.
You cant use the first part to justify actions by saying youre being true to yourself.
11.Absence makes the heart grow fonder.
Its actually absence makes the heart grow fonder, but too much absence makes it wander.
12.A jack of all trades is a master of none, but oftentimes better than a master of one.
13.An eye for an eye and a tooth for a tooth is actually about fairness.
It implies only an eye for an eye and only a tooth for a tooth.
14.Turn the other cheek.
To understand the phrase, you have to understand the symbolism and body language of Jesuss time.
You have heard that it was said, An eye for an eye and a tooth for a tooth.
But I say to you, Do not resist the one who is evil.
But if anyone slaps you on the right cheek, turn to him the other also.
So picture it: you strike a personsright cheekwith yourright hand.
(Lefties, imagine your left hand striking a persons left cheek.)
If you said a backhanded slap, you are correct!
Slapping someone in face isnt very respectful, but the backhanded slap indicates zero respect.
This was a slap reserved for servants and lower classes.
So if the person who got pimp-slapped offers their left cheek, what is the slapper to do?
Backslapping with the left hand would be unseemly.
The left hand was thought to be unclean.
So what turn the other cheek really means is demanding equality without resorting to violence.
15.Great minds think alike, but fools rarely differ.
16.Give me liberty or give me death.
Read the whole speech, he is really saying get off your asses.
17.Why then the worlds mine oyster which with sword I will open.
18.Fortune favors the bold and abandons the timid.
Its not a big difference but it bothers me that only the first half gets quoted.
19.Blood (of the covenant) is thicker than (the) water (of the womb).
Those who are willing to die together for their common goals and values are beyond brothers.
20.As happy as a clam at high tide.
Hence it wont be caught.
21.The race is not (always) to the swift.
22.Early bird gets the worm.
But second mouse gets the cheese.
23.Laugh and the world laughs with you, weep and you weep alone.
24.My boss always said: Teamwork makes the dream work.
Wasnt the team that was bad…
25.Dont mistake my kindness for weakness.
The full quote: Dont mistake my kindness for weakness.
26.The mountains are calling and I must go and I will work on while I can, studying incessantly.
John Muir, father of our national park system.
He wasnt just some dude who liked fucking around in the mountains, he was a scientist.
And we have killed him.
How shall we comfort ourselves, the murderers of all murderers?
What water is there for us to clean ourselves?
What festivals of atonement, what sacred games shall we have to invent?
Is not the greatness of this deed too great for us?
Must we ourselves not become gods simply to appear worthy of it?
-Nietzsche
The full quote is not nearly as cut and dry as the first sentence.
Much more thoughtful than celebratory.
First as tragedy, then as farce.
People often forget the second part!
29.My country, right or wrong.
30.Now is the winter of our discontent.
Actual quote: Now is the winter of our discontent made glorious summer by this sun of York.
The now modifies made, not is.
Basically the complete opposite of what you get by stopping half way through the quote.