Charles Caleb Colton
The excess of our youth are checks written against our age and they are payable with interest thirty years later.
The only time you really live fully is from thirty to sixty. The young are slaves to dreams; the old servants of regrets. Only the middle-aged have all their five senses in the keeping of their wits.
One's 30th birthday and one's 60th are days that press their message home with iron hand. With his 70th milestone past, a man feels that his work is done, and dim voices call to him from across the Unseen. His work is done, and so illy, compared with what he had wished and expected! But the impressions made upon his heart by the day are no deeper than those his 30th birthday inspires. At thirty, youth, with all it palliates and excuses, is gone forever. The time for mere fooling is past; the young avoid you, or else look up to you and tempt you to grow reminiscent. You are a man and must give an account of yourself.
At the age of twenty, we don't care what the world thinks of us; at thirty, we worry about what it is thinking of us; at forty, we discover that it wasn't thinking of us at all.
A man thirty years old, I said to myself, should have his field of life all ploughed, and his planting well done; for after that it is summer time.
Everything I know I learned after I was thirty.
At twenty years of age, the will reigns; at thirty, the wit; and at forty, the judgement.
F. Scott Fitzgerald.
Thirty—the promise of a decade of loneliness, a thinning list of single men to know, a thinning briefcase of enthusiasm, thinning hair.
Time and Tide wait for no man, but time always stands still for a woman of thirty.
The man who views the world at fifty the same as he did at twenty has wasted thirty years of his life.