Union Is Strength

Latin Lessons and Reader by Allen H. Weld. Internet Archive link. This is story 21 in the "Fables" section. There is also a vocabulary in back of the book.

Scilurus, Scytharum rex, morti proximus, adferri fasciculum hastilium jussit, eumque, ut erat colligatus, dedit confringendum filiis suis. Cum id quisque se facere posse negavisset, ipse, soluto fasciculo, singula hastilia facile confregit, ita docens illos, si concordes essent, insuperabiles fore; si dissiderent, infirmos futuros.

Scilurus,
Scytharum rex,
morti proximus,
adferri fasciculum hastilium
jussit,
eumque,
ut erat colligatus,
dedit confringendum
filiis suis.
Cum id
quisque
se facere posse
negavisset,
ipse,
soluto fasciculo,
singula hastilia facile confregit,
ita docens illos,
si concordes essent,
insuperabiles fore;
si dissiderent,
infirmos futuros.

Scilurus, the king of the Scythians, Scilurus, Scytharum rex, being near death, morti proximus, ordered that a bundle of spear shafts be brought to him adferri fasciculum hastilium jussit, and when he had tied up the bundle eumque, ut erat colligatus, he gave it to his sons to break dedit confringendum filiis suis. When each one said he could not do it Cum id quisque se facere posse negavisset, he, having untied the bundle, ipse, soluto fasciculo, easily broke the shafts one by one singula hastilia facile confregit, thus teaching his sons ita docens illos, that if they were in agreement si concordes essent, they would be unconquerable insuperabiles fore; if they disagreed with each other si dissiderent, they would be weak infirmos futuros.