
"Work in progress. Do not cross the line."
"All your city are belong to us."
"All you need is love."
"I will build my own city with skyscrappers and parks."
"Bite my shiny metall ass."
"Good news everyone!"
"There is no spoon."
"Relax, it's just a game."
"CATS ARE NICE."
"Gabe do can count to three."
"Use the Force, Luke."
Also you can add unique messages in other languages. For example, in russian
"Что нам стоит дом построить."
"Город-сказка, город-мечта."
"В чем сила, брат?"
"Утром мажу бутерброд - сразу мысль: а как народ?"
"И так сойдет!"
"Зачем ругаеся, насяльника."
"Съешь же ещё этих мягких французских булок да выпей чаю."
The last one is pangram and you can use it in other languages, some phrases are funny.