A man is as old as he feels

A person's age is immaterial - it is only when he thinks and feels that he is ageing that he actually becomes old.

Great talkers are little doers

Those people who talk a lot and are always teaching others usually do not do much work.

An idle brain is the devil's workshop

One who has nothing to do will be tempted to do many mischievous acts.

An ounce of discretion is worth a pound of wit

It is better to be careful and discrete than to be clever.

Faint heart never won fair lady

To succeed in life one must have the courage to pursue what he wants.

A penny saved is a penny gained

By being thrifty one will be able to save up.

A rolling stone gathers no moss

A person who never settles in one place or who often changes his job will not succeed in life ; one who is always changing his mind will never get anything done.

As you sow, so you shall reap

One will either enjoy or suffer the consequences of his earlier actions or inactions.

Barking dogs seldom bite

Those who make loud threats seldom carry them out.

Better late than never

To do something that is right, profitable, or good a little late is still better than not doing it at all. 

A bird in hand is worth two in the bush

Something that one already has is better than going after something seemingly more worthwhile that one may not be able to get.

Birds of a feather flock together

People of the same sort of character or belief always go together.

Call a spade a spade

If you say that someone calls a spade a spade, you mean that they speak frankly and directly, often about embarrassing or unpleasant subjects; an informal expression.

Dead men tell no lies

Often used as an argument for killing someone whose knowledge of a secret may cause one loss or get into serious trouble.

A great talker is a great liar

A smooth and persuasive talker may be a good liar.

Look at the bright side

Be optimistic

Make hay while the sun shines

Seize opportunities

Out of sight, out of mind

You will soon forget friends you do not meet or keep in contact with.