Active as Mr. Pratt was in the details of a great business, he found time for other work. Desiring an education, which he in his early days could not obtain, he provided the best for his children. He became deeply interested in Adelphi Academy, Brooklyn, was a trustee, and later president of the Board. In 1881 he erected the wing of the main building; and six years later, in 1887, he gave $160,000 for the erection of a new building.
He gave generously to the Baptist Church in Brooklyn in which he worshipped, and from the pews of which he was seldom absent on the Sabbath. He bestowed thousands upon struggling churches. He generously aided Rochester Theological Seminary. He gave to Amherst College, through his son Charles M. Pratt, about $40,000 for a gymnasium, and through his son Frederick B. Pratt thirteen acres for athletic grounds. He helped foreign missions and missions at home with an open hand.
"There were," says Dr. Cuyler, "innumerable little rills of benevolence that trickled into the homes of the needy and the hearts of the straitened and suffering. I never loved Charles Pratt more than when he was dealing with the needs of a bright orphan girl, whose case appealed strongly to his sympathies. After inquiring into it carefully, he said to me, 'We must be careful when trying to aid this young lady, not to cripple her energies, or lower her sense of independence.'
"The last time his hand ever touched paper was to sign a generous check for the benefit of our Brooklyn Bureau of Charities. Almost the last words that he ever wrote was this characteristic sentence: 'I feel that life is so short that I am not satisfied unless I do each day the best I can.'"
Mr. Pratt was not willing to spend his life in accumulating millions except for a purpose. He once told Dr. Cuyler, "The greatest humbug in this world is the idea that the mere possession of money can make any man happy. I never got any satisfaction out of mine until I began to do good with it."
He did not wish his wealth to build fine mansions for himself, for he preferred to live simply. He had no pleasure in display. "He needed," says his minister, Dr. Humpstone, "neither club nor playhouse to afford him rest; his home sufficed. For those who use such diversions he had no criticism. In these matters he was neither narrow nor ascetic. He was the brother of his own children. His home was to him the fairest spot on earth. He filled it with sunshine. Outside of his business, his church, and his philanthropy, it was his only sphere."
He was a man of few words and much self-control. Dr. Humpstone relates this incident, told him by a friend: "Some one made upon Mr. Pratt, openly, a bitter personal attack. The future revealed that this charge was entirely unmerited, and the man who made it lived to regret his act; but the moment revealed the greatness of our dead friend's love. He said no word; only a face pale with pain revealed how determined was his effort at self-control, and how keen was his suffering. When his accuser turned to go, he bade him good-morning, as though he had left a blessing and not a bane behind him. As I recall the past at this moment, I think of no word he ever spoke in my hearing that was proof of an unloving spirit in him."
For years Mr. Pratt had been thinking about industrial education; "such education as enables men and women to earn their own living by applied knowledge and the skilful use of their hands in the various productive industries." He knew that the majority of young men and women are born poor, and must struggle for a livelihood, and, whether poor or rich, ought to know how to be self-supporting, and not helpless members of the community. The study of algebra and English literature might be a delight, but not all can be teachers or clerks in stores; some must be machinists, carpenters, and skilled workmen in various trades.
Mr. Pratt never forgot that he had been a poor boy. He never grew cold in manner and selfish in life. "He presented," says Mr. James MacAlister, President of the Drexel Institute, Philadelphia, "the rare spectacle of a rich man in strong sympathy with the industrial revolution that was progressing around him. His ardent desire was to recognize labor, to improve it, to elevate it; and his own experience taught him that the best way to do this was to put education into the handiwork of the laborer."