1) "La"="The". No indefinite, genders, numbers or cases for the articles.
2) All nouns end in "o" (plus "j" for plurals and/or "n" for accusatives).
3) All adjectives end in "a".
4) 1=unu, 2=du, 3=tri, 4=kvar, 5=kvin, 6=ses, 7=sep, 8=ok, 9=nau, 10=dek.
5) Posessives are the pronouns + "a".
6) Verbs have no person or number. Present is "-as", past "-is",
future "-os".
7) Adverbs end in "e".
8) All prepositions govern the nominative.
9) Every word is pronounce as it is spelled.
10) Accent falls always on the next-to-last syllable.
11) You can make compound words by putting the chief word at the end.
12) There ain't no double negatives.
13) The accusative can show direction.
14) "je" can be used as a wildcard preposition.
15) Foreign words are welcome with minimum change.
16) Final vowels of articles and nouns can be omitted whenever you wish.
(Adapted from Zamehof's original rules. For more details see Don Harlow's version. For my Spanish version click here. You can also read about the Federación Mexicana de Esperanto.)
Inteligenta persono lernas la lingvon Esperanto rapide kaj facile.
Esperanto estas la moderna, kultura lingvo por la tuta mondo.
(From an ELNA brochure.)