PROVO, Utah — As you walk into a world of turmoil, turbulence and uncertainty, you will find success and happiness by staying close to the Lord and the spiritual principles learned at BYU.

That was the message to the largest summer graduating class in the university's history by those who addressed the ceremonies, held in the Marriott Center.

President Boyd K. Packer, acting president of the Quorum of the Twelve, presided at the gathering, and Elder David B. Haight of the Quorum of the Twelve conducted.

During brief remarks, Elder Haight said he had only one thing to add to the advice of graduation speakers Kim B. Clark, dean of the Harvard Business School; and Lucile C. Tate, author and biographer.

"Live the principles of the gospel," he said. "Don't start to shrug off or give in a little here and a little there."

Elder Haight, who lived in all 10 decades of the 20th Century, also told the graduates to be patriotic amid a changing world.

"You will have an opportunity to work with people, to be the example, and to have them work with you and find out who you are and where you come from and why you dress the way you dress and why you carry on your family responsibilities the way you do," he said.

Brother Clark, who was awarded a honorary doctorate of business and public service, asked the audience to reflect on leadership — the kind of leadership necessary at every level of every organization, enterprise and activity, including family and the Church.

"It is a time of turmoil, turbulence and uncertainly," he said. "It is also a time of great opportunity."

The world needs leaders with five characteristics — integrity, energy, inspiration, wisdom and courage — and who can draw on the powers of heaven, he said.

"We need leaders who are a light unto the world," he concluded. "You can be those leaders."

Sister Tate, the recipient of an honorary doctorate of humane letters, dedicated her talk to the three people she wrote about — President Packer, Elder Haight and Elder LeGrand Richards. "Through my own eyes," she said, "I saw the three as examples of gospel truths."

Elder Richards taught her that after the body loses its strength, the spirit can yet run and walk and even soar, she said. Elder Haight taught her about humility and President Packer about constant and devoted friendship.

"During the countless hours spent with these men, I came not only to know them, but to know for myself who they really are," she said. "Thus I can testify that the fifteen men who lead this Church have been called, sustained and anointed witnesses of the Lord Jesus Christ to all the world."

Sister Tate then offered 10 words of advice to the graduates: "Work in place of worry. Faith in place of fear."

"These words have sustained me through each book I have written," she explained.

In addition to Sister Tate and Brother Clark, former BYU administrator Ben E. Lewis, and Arline and Leon "Pete" Harman, philanthropists who were the first Kentucky Fried Chicken franchise owners, were also honored during the graduation ceremonies, each receiving a Presidential Citation.

During his remarks, BYU President Merrill J. Bateman of the Seventy also counseled the graduates to stay close to the Church.