"A man of quiet strength, he took few friends into complete confidence. His critics mistook his dignified reserve for pomposity. Life for Washington was a serious mission, a job to be tackled soberly, unremittingly. He had little time for humor. Although basically good-natured, he wrestled with his temper and sometimes lost. He was a poor speaker and could become utterly inarticulate without a prepared text. He preferred to express himself on paper. Still, when he did speak, he was candid, direct, and looked people squarely in the eye. Biographer Douglas Southall Freeman conceded that Washington's "ambition for wealth made him acquisitive and sometimes contentious." Even after Washington established himself, Freeman pointed out, "he would insist upon the exact payment of every farthing due him" and was determined "to get everything that he honestly could." Yet neither his ambition to succeed nor his acquisitive nature ever threatened his basic integrity."