"Believe you can and you're halfway there." - Theodore Roosevelt

This quote emphasizes the importance of having a positive mindset in achieving success. It suggests that when we believe in ourselves, we have already taken half the journey towards our goals. This belief can motivate us to work harder and persevere through challenges.

"Success is not final, failure is not fatal: it is the courage to continue that counts." - Winston Churchill

Courage plays a crucial role in overcoming obstacles on our path to success. Churchill's words remind us that it's not about avoiding failures but about having the courage to keep going despite setbacks. By continuing forward with determination, we can turn failures into stepping stones for growth.

"The only way to do great work is to love what you do." - Steve Jobs

Loving what we do gives us an edge over others in achieving greatness. When passion drives us, we are more likely to put forth extra effort and be dedicated throughout our endeavors. As Jobs puts it, loving one's work makes all the difference between ordinary achievements and extraordinary ones.

"You miss 100% of the shots you don't take." - Wayne Gretzky

Gretzky's statement highlights the significance of taking risks when striving for excellence or pursuing opportunities that may lead us closer towards our dreams or aspirations. Not taking action means missing out entirely on potential successes; therefore, embracing risk-taking becomes essential for personal growth and development.

"Don't watch the clock; do what it does—keep going!" - Sam Levenson

Time management often comes down to maintaining momentum rather than focusing solely on deadlines or time constraints set by clocks or calendars alone (Levenson). By keeping this mentality while working towards objectives, individuals avoid procrastination caused by constant monitoring of time passing.

In conclusion, these five quotes offer valuable insights into various aspects related with motivation such as believing in oneself (Roosevelt), overcoming fear (Churchill), finding purposeful passion (Jobs), seizing opportunities through calculated risks (Gretzky) as well as effective productivity habits based upon continuous progress rather than just adhering rigidly toward specific schedules (Levenson). These principles serve as powerful reminders which encourage readers continually strive for self-improvement while never giving up their pursuit of wisdom inspired from English literature itself!