Muchas cosas difíciles de diseñar suelen ser fáciles de realizar.

Samuel Johnson

What is written without effort is in general read without pleasure.

Samuel Johnson, Johnsonian Miscellanies – Vol II

Mankind have a great aversion to intellectual labor; but even supposing knowledge to be easily attainable, more people would be content to be ignorant than would take even a little trouble to acquire it.

Samuel Johnson