The "18/40/60" rule to happiness: At age 18, people care very much about what others think of them. By age 40, they learn not to worry what others think. By age 60, they figure out that no one was thinking about them in the first place.
Common sense is the collection of prejudices acquired by age eighteen.
At eighteen our convictions are hills from which we look; at forty-five they are caves in which we hide.
The time not to become a father is eighteen years before a war.
I've just had eighteen straight whiskies. I think that's the record.
Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen.
Mom and Pop were just a couple of kids when they got married. He was eighteen, she was sixteen and I was three.
Men reach their sexual peak at eighteen. Women reach theirs at thirty-five. Do you get the feeling that God is playing a practical joke?
I have the body of an eighteen year old. I keep it in the fridge.
Thanksgiving dinners take eighteen hours to prepare. They are consumed in twelve minutes. Half-times take twelve minutes. This is not coincidence.
But who prays for Satan? Who, in eighteen centuries, has had the common humanity to pray for the one sinner that needed it most?
For us lads of eighteen they ought to have been mediators and guides to the world of maturity, the world of work, of duty, of culture, of progress -- to the future.
I mean, Eighteen years old is the age of consent in Europe and you can go anywhere and do anything you like. In America, it is dumb. At eighteen you should be able to do anything that you like, except get married.
Common sense is nothing more than a deposit of prejudices laid down by the mind before you reach eighteen.
You're only young once, but you can be immature forever.
All Quiet on the Western Front.
When I began writing science fiction in the middle 60s, it seemed very easy to find ideas that took decades to percolate into the cultural consciousness; now the lead time seems more like eighteen months.
When you're seventeen or eighteen, you bomb on in pre-season immediately, try to impress. But then at the end of pre-season because you were so fast at the beginning, your times aren't getting any better and it looks like you actually aren't getting fitter.
It seems to me that the years between eighteen and twenty-eight are the hardest, psychologically. It’s then you realize this is make or break, you no longer have the excuse of youth, and it is time to become an adult – but you are not ready.
Once I started on 'Frances' I discovered it was literally a bottomless well. It devastated me to maintain that for eighteen weeks, to be immersed in this state of rage for twelve to eighteen hours a day. It spilled all over, into other areas of my life.
No woman ever ages beyond eighteen in her heart.
In my second year in Los Angeles, when I was eighteen, I wasn't getting any bookings, so I stopped going out, stopped partying. It was a matter of getting to the work. I had to focus.
I'm going to lower the drinking age to eighteen. If you're old enough to die in Iraq, you're old enough to drink.
The normal profits of a business concern in the United States are six, eight, ten, and sometimes twelve percent. But war-time profits - ah! that is another matter - twenty, sixty, one hundred, three hundred, and even eighteen hundred per cent - the sky is the limit.
I seldom think of politics more than eighteen hours a day.
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