William McKinley
William McKinley delivers his inaugural address as outgoing President Grover Cleveland listens in Washington, D.C., March 1897. Reuters

Donald Trump is set to become the 45th president of the United States following his inauguration at the U.S. Capitol Building on Friday. Then, in line with tradition, the new president will deliver his first public speech — called the inauguration address.

In the past, these speeches have served as great sources of inspiration for the public, going down in history as some of the best quotes from world leaders.

As you're waiting for Trump Friday, take a spin through some of the most famous Inauguration Day quotes from former U.S. presidents, collected from McClatchy, Politico and transcripts of the addresses themselves:

“We should be unfaithful to ourselves if we should ever lose sight of the danger to our liberties if anything partial or extraneous should infect the purity of our free, fair, virtuous and independent elections.”

– John Adams

“Our time of standing pat, of protecting narrow interests and putting off unpleasant decisions — that time has surely passed. Starting today, we must pick ourselves up, dust ourselves off, and begin again the work of remaking America.”

– Barack Obama

“Events have brought our American democracy to new influence and new responsibilities. They will test our courage, our devotion to duty, and our concept of liberty. But I say to all men, what we have achieved in liberty, we will surpass in greater liberty. Steadfast in our faith in the Almighty, we will advance toward a world where man's freedom is secure.”

– Harry S. Truman

“Let us, then, fellow citizens, unite with one heart and one mind. Let us restore to social intercourse that harmony and affection without which liberty and even life itself are but dreary things. And let us reflect that, having banished from our land that religious intolerance under which mankind so long bled and suffered, we have yet gained little if we countenance a political intolerance as despotic, as wicked, and capable of as bitter and bloody persecutions.”

– Thomas Jefferson

“I hold, that in contemplation of universal law, and of the Constitution, the Union of these States is perpetual. Perpetuity is implied, if not expressed, in the fundamental law of all national governments.”

– Abraham Lincoln

“Much has been given us, and much will rightfully be expected from us. We have duties to others and duties to ourselves; and we can shirk neither.”

– Theodore Roosevelt

“It is union that we want, not of a party for the sake of that party, but a union of the whole country for the sake of the whole country, for the defense of its interests and its honor against foreign aggression, for the defense of those principles for which our ancestors so gloriously contended. As far as it depends upon me it shall be accomplished.”

– William Henry Harrison

“Let us learn together and laugh together and work together and pray together, confident that in the end we will triumph together in the right. The American dream endures. We must once again have full faith in our country -- and in one another. I believe America can be better. We can be even stronger than before.”

– Jimmy Carter

“Our democracy must be not only the envy of the world but the engine of our own renewal. There is nothing wrong with America that cannot be cured by what is right with America.”

– Bill Clinton

“This great nation will endure as it has endured, will revive and will prosper. So, first of all, let me assert my firm belief that the only thing we have to fear is fear itself.”

– Franklin D. Roosevelt

“Justice requires us to remember that when any citizen denies his fellow, saying, ‘His color is not mine,’ or ‘His beliefs are strange and different,’ in that moment he betrays America, though his forebears created this nation.”

– Lyndon B. Johnson

“We should not let the much that is to do obscure the much which has been done. The past and present show faith and hope and courage fully justified. Here stands our country, an example of tranquillity at home, a patron of tranquillity abroad. Here stands its Government, aware of its might but obedient to its conscience. Here it will continue to stand, seeking peace and prosperity, solicitous for the welfare of the wage earner, promoting enterprise, developing waterways and natural resources, attentive to the intuitive counsel of womanhood, encouraging education, desiring the advancement of religion, supporting the cause of justice and honor among the nations.”

– Calvin Coolidge

“America is never wholly herself unless she is engaged in high moral principle. We as a people have such a purpose today. It is to make kinder the face of the nation and gentler the face of the world.”

– George H. W. Bush