In questions of science

"In questions of science the authority of a thousand is not worth the humble reasoning of a single individual."

-Galileo Galilei

This is as true in everyday life as it is in battle

"This is as true in everyday life as it is in battle: we are
given one life and the decision is ours whether to wait for
circumstances to make up our mind, or whether to act, and in
acting, to live."

-- Omar Bradley

It is well to give when asked

"It is well to give when asked, but it is better to give
unasked."

-- Kahil Gibran

Good, better, best

"Good, better, best. Never rest until good be better and
better best."

-- Mother Goose rhyme

People are always blaming their circumstances for what they are,

"People are always blaming their circumstances for what they
are. I don't believe in circumstances. The people who get on
in this world are the people who get up and look for the
circumstances they want, and, if they can't find them, they
make them."

-- George Bernard Shaw

There comes a time in a man’s life when he must prefer a meaningful death

There comes a time in a man’s life when he must prefer a meaningful death to a meaningless life.

-Benigno “Ninoy” Aquino, Jr.

Only you can damage your character

Your reputation can be damaged by the opinion of others. Only you can damage your character.

-Selected

Always do right

Always do right, this will gratify some people and astonish the rest.

-Mark Twain