The Yale Endowment contains thousands of funds with a variety of purposes and restrictions. It is the engine that drives the university. It supports 34% of Yale's total operations: from the financial aid for students to cutting edge scientific research, from the university's world-class professors to the unparalleled art collections. It seeks to provide high inflation-adjusted returns to support current and future needs of the University. Approximately three-quarters constitute true endowment: gifts restricted by donors to provide long-term funding for designated purposes. The remaining one-quarter represents quasi-endowment, monies that the Yale Corporation chooses to invest and treat as endowment.