An adventure is an exciting or unusual experience; it may also be a bold, usually risky undertaking, with an uncertain outcome. The term is often used to refer to activities with some potential for physical danger, such as skydiving, mountain climbing and or participating in extreme sports. The term also broadly refers to any enterprise that is potentially fraught with physical, financial or psychological risk, such as a business venture, a love affair, or other major life undertakings.
- We have not even to risk the adventure alone, for the heroes of all time have gone before us — the labyrinth is thoroughly known. We have only to follow the thread of the hero path, and where we had thought to find an abomination, we shall find a god; where we had thought to slay another, we shall slay ourselves; where we had thought to travel outward, we shall come to the center of our own existence. And where we had thought to be alone, we shall be with all the world.
- Equipped with his five senses, man explores the universe around him and calls the adventure Science.
- Edwin Hubble, "The Exploration of Space", Harper's Magazine, Volume 158 (May 1929), p. 732.
Hoyt's New Cyclopedia Of Practical Quotations (1922) 
Quotes reported in Hoyt's New Cyclopedia Of Practical Quotations (1922), p. 9.
- Some bold adventurers disdain
The limits of their little reign,
And unknown regions dare descry.
- Thomas Gray, Ode on a Distant Prospect of Eton College.
- * * * and now expecting
Each hour their great adventurer, from the search
Of foreign worlds.
- Qui ne s'adventure n'a cheval ny mule, ce dist Salomon.—Qui trop, dist Echephron, s'adventure—perd cheval et mule, respondit Malcon.
- He who has not an adventure has not horse or mule, so says Solomon.—Who is too adventurous, said Echephron,—loses horse and mule, replied Malcon.
- Rabelais, Gargantua, Book I, Chapter 33.