This image that I saw on Twitter has composition problems that you often see in presentation slides:

• The text in the box does not have enough breathing space,
• The quotation marks disturb the balance and alignment of the text box
• The line breaks are not placed carefully enough, breaking apart words that belong together.

I tried to come up with an alternative design in SlideMagic (which does not support the giant quotation marks [yet]). You clone these two slides to your own SlideMagic account here and use them in your presentations if you want. Image taken from WikiPedia.

Art: detail of the Mona Lisa