„There is always someone out there getting better than you by training harder than you.“

„If you insist on the chase," I say, my voice much surer than I feel."Then you better start training. 'Cause, dude you're in for a marathon.“

—  Alyson Nöel, book Blue Moon

Source: Blue Moon

„The price of training is always a certain "trained incapacity": the more we know how to do something, the harder it is to learn to do it differently.“

—  Abraham Kaplan American philosopher 1918 - 1993

Source: "The Conduct of Inquiry", p. 29.

„Good triumphs over evil when it’s better organized, better trained, better armed, sneakier, and gutsier than evil.“

—  Malcolm Azania, book The Coyote Kings of the Space-Age Bachelor Pad

Source: The Coyote Kings of the Space-Age Bachelor Pad (2004), Chapter 56 “At Last, the Box, Explained” (p. 320)

„If you train the part of the body you get that part trained“

—  Hira Ratan Manek 1937

The lecture in Ashland, Oregon (8th of July 2005)

„You can look out of your life like a train & see what you're heading for, but you can't stop the train.“

—  Philip Larkin English poet, novelist, jazz critic and librarian 1922 - 1985

Letter to Monica Jones, 22 October 1967

„After all the highways, and the trains, and the appointments, and the years, you end up worth more dead than alive.“

—  Arthur Miller, Death of a Salesman

Willy
Death of a Salesman (1949)
Source: Arthur Miller's Death of a Salesman

„The scholar, the teacher, the intellectual, have a higher duty than any of the others, for society has trained you to think as well as do.“

—  John F. Kennedy 35th president of the United States of America 1917 - 1963

1963, Address at the Free University of Berlin

„If racehorses were trained as much as most bodybuilders train, you could safely bet your money on an out-of-condition turtle.“

—  Arthur Jones (inventor) American inventor 1926 - 2007

The New High Intensity Training (2004)

„Are these things really better than the things I already have? Or am I just trained to be dissatisfied with what I have now?“

—  Chuck Palahniuk, book Lullaby

Source: Lullaby

„They mean a trip to Paris or Rome
To someone else but not for me.
The trains and boats and planes
Took you away, away from me.“

—  Hal David American lyricist 1921 - 2012

Song Trains and Boats and Planes

„In life it is training rather than birth which counts.“

—  Ihara Saikaku Japanese writer 1642 - 1693

Book I, ch. 3.
The Japanese Family Storehouse (1688)

„You have something that might be more use to me than either gold or power—something that in fact brings both in its train.”
“And what is that?“

—  Tad Williams novelist 1957

The count leaned forward. “Knowledge.”
Source: Memory, Sorrow, and Thorn, To Green Angel Tower (1993), Part 2, Chapter 21, “The Frightened Ones” (p. 491).

„The enlisted guys will be okay, but the officers get the sense of humor trained out of ’em.“

—  Daniel Abraham speculative fiction writer from the United States 1969

Source: Leviathan Wakes (2011), Chapter 11 (p. 113)

„"Life is like a train Mademoiselle. It goes on. And it is a good thing that that is so."
"Why?"
"Because the train gets to its journey's end at last, and there is a proverb about that in your language, Mademoiselle."
"'Journeys end in lovers meeting'" Lenox laughed. "That is not going to be true for me."
"Yes — yes, it is true. You are young, younger than you yourself know. Trust the train Mademoiselle, for it is le bon Dieu who drives it".“

—  Agatha Christie, book The Mystery of the Blue Train

The Mystery of the Blue Train (1928)

„I think it [getting a gun] should be like getting a pilot's license. I think you should require training to get a license to have a gun.“

—  Sam Harris American author, philosopher and neuroscientist 1967

Sam Harris, Real Time with Bill Maher (February 1, 2013)
2010s

„Do you train for passing tests or do you train for creative inquiry?“

—  Noam Chomsky american linguist, philosopher and activist 1928

„People get ready there's a train comin';
You don't need no baggage, just get on board.
All you need is faith to hear the diesels hummin';
You don't need no ticket, just thank the lord.“

—  Curtis Mayfield American singer, songwriter, and record producer 1942 - 1999

People Get Ready, performed by The Impressions, from People Get Ready (1965).
Song lyrics

„You mean guys don't get injured in spring training? Guys get hurt walking down the street. All the managers, pitching coaches [are] very sensitive. Look, you can always pick at something, but there's a broader picture, a grander picture.“

—  Bud Selig American baseball executive 1934

„When you're a student or whatever, and you can't afford a car, or a plane fare, or even a train fare, all you can do is hope that someone will stop and pick you up.“

—  Douglas Adams English writer and humorist 1952 - 2001

Statement of 1984, as quoted in Don't Panic: The Official Hitchhikers Guide to the Galaxy Companion (1988) by Neil Gaiman, p. 2
Context: When you're a student or whatever, and you can't afford a car, or a plane fare, or even a train fare, all you can do is hope that someone will stop and pick you up.
At the moment we can't afford to go to other planets. We don't have the ships to take us there. There may be other people out there (I don't have any opinions about Life Out There, I just don't know) but it's nice to think that one could, even here and now, be whisked away just by hitchhiking.