DALE CARNEGIE

Never give up when the going gets tough. Procrastination does not breed success. When you find it difficult, work harder. 

• Picture the finish line: Sometimes when the going gets tough, you need to envision yourself at the finish line, for a boost in motivation.
• We're not all meant to finish: There are many people who will give up during the marathon. And that's ok.

When you lack motivation, take some time to visualize the parts of your work that inspire you the most. 

Studies show that having a purpose leads to being happier at work, which leads to being more productive. If you do something you love, you'll have a reservoir of vitality to dr...