Believe you can and you're halfway there. Theodore Roosevelt Instagram sharing coming soon. Quote text and source copied to clipboard. Link to this quote copied to clipboard. More information about this quote Topic Fake it 'til you make it Confidence Author Theodore Roosevelt Medium Speech Statement Type Advice Language English Time 1905 1900s 20th century Occupation American President Nobel laureate National leader Politician From United States Authentication Score 0 More information on Authentication Score coming soon. Citation Roosevelt, Theodore, Jr. Commencement Speech. Harvard University, 28 June 1905. Citation text copied to clipboard.