When others asked the truth of me, I was convinced it was not the truth they wanted, but an illusion they could bear to live with.

I would maintain that thanks are the highest form of thought, and that gratitude is happiness doubled by wonder.

Error is discipline through which we advance.

The stone that the builder refused shall be the head cornerstone.

Better than a thousand hollow words is one word that brings peace.

It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.

Nature is a mutable cloud which is always and never the same