"El ser es. El ser es en sí mismo. El ser es lo que es."

“Insanity is doing the same thing over and over and expecting different results.”

“Failure and invention are inseparable twins. To invent you have to experiment, and if you ...”

“God does not play dice with the universe.”

“You are what you believe yourself to be.”

“In the end it is about trying, failing and improving.”

“If you're not stubborn, you'll give up on experiments too soon.”

“Kites rise highest against the wind, not with it.”

“Do not pray for an easy life, pray for the strength to endure a difficult one.”

“We do today what they won’t, so tomorrow we accomplish what they can’t.”

“In the small matters trust the mind, in the large ones the heart.”

“A life spent making mistakes is not only more honorable, but more useful than a life spent...”

“Everything that happens happens as it should, and if you observe carefully, you will find ...”