Quotes can be a powerful way to begin or reinforce the message of an essay. Here are some essay quotes covering various topics that you might find inspiring or relevant for your essays:

1. Education:
   • “Education is the most powerful weapon which you can use to change the world.” – Nelson Mandela
2. Leadership:
   • “Leadership is not about being in charge. It is about taking care of those in your charge.” – Simon Sinek
3. Success:
   • “Success is not final, failure is not fatal: It is the courage to continue that counts.” – Winston Churchill
4. Change:
   • “Change is the law of life. And those who look only to the past or present are certain to miss the future.” – John F. Kennedy
5. Technology:
   • “Technology empowers people to do what they want to do. It lets people be creative.” – Steve Jobs
6. Environment:
   • “We won’t have a society if we destroy the environment.” – Margaret Mead
7. Equality:
   • “The only limit to our realization of tomorrow will be our doubts of today.” – Franklin D. Roosevelt
8. Health:
   • “The greatest wealth is health.” – Virgil
9. Freedom:
   • “Freedom is never more than one generation away from extinction.” – Ronald Reagan
10. Nature:
    • “In every walk with nature, one receives far more than he seeks.” – John Muir
11. Happiness:
    • “The greatest happiness you can have is knowing that you do not necessarily require happiness.” – William Saroyan
12. Diversity:
    • “Diversity is not about how we differ. Diversity is about embracing one another’s uniqueness.” – Ola Joseph
13. Human Rights:
    • “To deny people their human rights is to challenge their very humanity.” – Nelson Mandela
14. Innovation:
    • “Innovation distinguishes between a leader and a follower.” – Steve Jobs
15. Peace:
    • “Peace is not absence of conflict; it is the ability to handle conflict by peaceful means.” – Ronald Reagan
16. Justice:
    • “Injustice anywhere is a threat to justice everywhere.” – Martin Luther King Jr.
17. Art:
    • “Art enables us to find ourselves and lose ourselves at the same time.” – Thomas Merton
18. Love:
    • “Where there is love, there is life.” – Mahatma Gandhi
19. Science:
    • “The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.” – William Lawrence Bragg
20. Wisdom:
    • “The only true wisdom is in knowing you know nothing.” – Socrates

When using quotes in your essays, make sure they are relevant to the topic and reinforce the message you want to convey. Additionally, properly cite the source of the quote to give credit to the original author or speaker.