We rise to great heights by a winding staircase of small steps.

Write down the thoughts of the moment. Those that come unsought for are commonly the most valuable.

It is a sad fate for a man to die too well known to everybody else, and still unknown to himself.

All of our actions take their hue from the complexion of the heart, as landscapes their variety from light.

Wonder is the seed of knowledge

We cannot command Nature except by obeying her.

I usually accept bribes from both sides so that tainted money can never influence my decision.

If we are to achieve things never before accomplished we must employ methods never before attempted

I will never be an old man. To me, old age is always 15 years older than I am.

Reading maketh a full man; conference a ready man; and writing an exact man.

Read not to contradict and confute, nor to believe and take for granted... but to weigh and consider.

Prosperity discovers vice, adversity discovers virtue.

Who questions much, shall learn much, and retain much.

Truth can never be reached by just listening to the voice of authority.

All colours will agree in the dark.

A little science estranges a man from God; a lot of science brings him back.

Silence is the sleep that nourishes wisdom.

It's not what we profess but what we practice that gives us integrity.

Solitude is independence.