"Sometimes I feel I can fight".
"For me, there's so much farther I want to go to get back where I was, and hopefully go beyond that".
If Serena lifts the Venus Rosewater Dish this weekend, she will join an select group of women who have won Grand Slam titles after becoming mothers.
Williams missed last year's Wimbledon as she was pregnant with her first child.
Williams dropped her first set at this tournament as the 52nd-ranked Giorgi produced an impressive display of power and accuracy in the opener.
Once Williams had figured out how to break the Giorgi serve, though, in the fourth game of the second set, the momentum changed.
"I thought it was a good scoreline", Williams told the BBC after the match.
Ostapenko struggled with the pressure of defending her maiden Grand Slam title, losing in the first round of the recent French Open.
Kerber took advantage of Kasatkina's erratic serving and errors to return to the last four.
"I hate losing. That's no secret", the 23-times major victor said after digging deep to deny Camila Giorgi a famous victory with a rousing 3-6 6-3 6-4 quarter-final comeback win over the unseeded Italian.
Still, Kerber had some trouble closing things out.
It is the third time Kerber has reached the last four at Wimbledon, where she was runner-up in 2016.
Shrieking and clenching her fists after every key point that went her way, Serena let out a gutteral "C'mon" once she wrapped up the set.
The 90th Wimbledon win of her career - the most among active female players - means Serena, now 181st in the WTA rankings, will return to the top 100 next week.
She was the aggressor throughout, hitting 33 winners to Cibulkova's six, but also doubling her opponent's unforced error count.
Incredibly, Goerges had won only five matches in 10 previous visits to The All England Club - and none in the past five years - before arriving last week.
On Monday, the 36-year-old needed just 62 minutes to dispatch qualifier (and fellow mom) Evgeniya Rodina, 6-2, 6-2. I don't know. I still have a lot of matches to win. The Italian came from 0-40 down to hold for 5-3 and then, despite a double-fault, she held to take the set.
She played a powerful game throughout - averaging a 112 miles per hour first serve on the day and had six total aces and 20 winners.