Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus. - Alexander Graham Bell. [알렉산더 그레이엄 벨]
"Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus." - Alexander Graham Bell. &q…
![Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus. - Alexander Graham Bell. [알렉산더 그레이엄 벨]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCGskj1O7KoJ1n8VZ8_blymvj4IdvVSaODaGxjbpY-CvhyZBo-GCV47ccDOQ5UOUOIsfHwwq9nFR27rEYi8D_agyy_bZF7nvCWfRf8PRaghMCXW0siW2Z9I_9vVGpta_9dU4xzRXqSOV40hIQDbESEpcuE0Icazb4cnIvb6fjhh-l83FZRlMJDlVdQf6zY/w640-h362/A_portrait_of_Alexander_Graham_Bell_in_19th-centur-1735712345306.png "Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus. - Alexander Graham Bell. [알렉산더 그레이엄 벨]")