"لا تحتاج إلى إطفاء نور الآخر لتجعل نورك يضيء."

“If you think adventure is dangerous, try routine: it is lethal.”

“A friend is someone who gives you total freedom to be yourself”

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

“It is better to remain silent at the risk of being thought a fool, than to talk and remove...”

“Build your opponent a golden bridge to retreat across.”

“You can overcome anything, if and only if you love something enough”

“No great mind has ever existed without a touch of madness.”

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

“Don't grieve. Anything you lose comes round in another form.”

“What’s the world’s greatest lie?… It’s this: that at a certain point in our lives,...”

“The more sand has escaped from the hourglass of our life, the clearer we should see through it”

“All you have to do is pay attention: lessons always arrive when you are ready.”