William Muir,
The Caliphate: Its Rise, Decline and Fall…
“ Mu'awiya had long keenly missed the support of a fleet, and in fact had sought permission from 'Omar to embark his soldiery in ships. "The isles of the Levant," he wrote, "are close to the Syrian shore; you might almost hear the barking of the dogs and cackling of the hens; give me leave to attack them." But 'Omar dreaded the sea, and wrote to consult 'Amr, who answered thus:—"The sea is a boundless expanse, whereon great ships look tiny specks; nought but the heavens above and waters beneath; when calm, the sailor's heart is broken; when tempestuous, his senses reel. ”
