Truth, but not the whole ...

Truth, but not the whole truth, must be the invariable principle of every man who hath either religion, honour, or prudence. Thosewho violate it, may be cunning, but they are not able. Lies and perfidy are the refuge of fools and cowards.
Truth, but not the whole truth, must be the invariable principle of every man who hath either religion, honour, or prudence. Thosewho violate it, may be cunning, but they are not able. Lies and perfidy are the refuge of fools and cowards.
 Lord Chesterfield

More phrases

Don't settle in the land of barely enough. That is where you are, it is not who you are. That's your location, it's not your identity. No matter what it looks like, have an abundant mentality.
The by-product is that they more people you help, the "richer" you become, mentally, emotionally, spiritually, and definitely financially.
 T. Harv Eker
Happiness doesn't depend on any external conditions, it is governed by our mental attitude.
The truth is incontrovertible. Malice may attack it, ignorance may deride it, but in the end, there it is.
To improve is to change; to be perfect is to change often.

Quotes from the same author

Every man is to be had one way or another and every woman almost anyway.
 Lord Chesterfield
An ignorant man is insignificant and contemptible; nobody cares for his company, and he can just be said to live, and that is all.
 Lord Chesterfield
A man must have a good share of wit himself to endure a great share in another.
 Lord Chesterfield
Indifference is commonly the mother of discretion.
 Lord Chesterfield
Of those who really love their sons, few know how to do it. Some spoil them when they are young, and then quarrel with them when they are grown up, for having been spoiled; some love them like mothers, and attend only to the bodily health and strength of the hopes of their family, solemnize his birthday, and rejoice, like the subjects of the Great Mogul, at the increase of his bulk: while others, minding, as they think, only essentials, take pains and pleasure to see in their heir, all their favourite weaknesses and imperfections.
 Lord Chesterfield