What lies behind us and what lies ahead of us are tiny matters compared to what lives within us.

Property is surely a right of mankind as real as liberty.

To be one, to be united is a great thing. But to respect the right to be different is maybe even greater.

Everybody is ignorant, only on different subjects.

Taste every fruit of every tree in the garden at least once. It is an insult to creation not to experience it fully. Temperance is wickedness.

One of the truest tests of integrity is its blunt refusal to be compromised.

Nature is pleased with simplicity. And nature is no dummy

An understanding of the natural world is a source of not only great curiosity, but great fulfilment.

It’s your road and yours alone. Others may walk it with you, but no one can walk it for you.

Share our similarities, celebrate our differences.

Immoderate desire is the mark of a child, not a man.

Good advice is always certain to be ignored, but that's no reason not to give it.

The noblest pleasure is the joy of understanding.

A precedent embalms a principle.

Take care of the pieces well. The whole will take care of itself.

The greatest deception men suffer is from their own opinions.

Wisdom is not the product of schooling, but of the lifelong attempt to acquire it.

Never ruin an apology with an excuse.

What can't be cured must be endured.

Simplicity is the ultimate sophistication.

Thought can be so seductive and hypnotic that it absorbs your attention totally, so you become your thoughts.