Nikola Tesla quotes
The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane. 
I do not think you can name many great inventions that have been made by married men. 
One must be sane to think clearly, but one can think deeply and be quite insane. 
The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence. 
If you want to find the secrets of the universe, think in terms of energy, frequency and vibration. 
Be alone, that is the secret of invention; be alone, that is when ideas are born. 
My brain is only a receiver, in the Universe there is a core from which we obtain knowledge, strength and inspiration. I have not penetrated into the secrets of this core, but I know that it exists. 
I don't care that they stole my idea... I care that they don't have any of their own 